1985 Pontiac Firebird Performance Engines

Name: Team G; Water Pump Spacer Kit
Brand: Weiand
SKU: 8207
Price: 112.99 USD

Keep Your 1985 Pontiac Firebird in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1985 Pontiac Firebird looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Valve Cover Gasket Sets, Performance Engine Intake Manifold Gaskets, and Performance Engine Cylinder Head Gaskets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like Edelbrock, FEL-PRO Performance, and Spectre. For example, Edelbrock Performance Engines start at just $37.99 with an average 4.4 star rating. FEL-PRO Performance and Spectre offer similar pricing and quality, backed by strong customer feedback. With over 204 reviews and a solid 4 star average, you can shop with confidence knowing other Pontiac Firebird owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1985 Pontiac Firebird Performance Engine at Advance Auto Parts is around $294.22, with a range that starts at $7.99 and goes up to $1,517.99. With 77 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts, Cylinder Head Gasket: Steel Core Composite, Without Head Bolts, and Valve Cover Gasket Set for Chevrolet start at just $35.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1985 Pontiac Firebird in peak condition, inside and out.

Looking for the perfect Performance Engine for your 1985 Pontiac Firebird? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your Pontiac Firebird. Whether you’re driving a 1985 model or another popular model year like 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.

Essential 1985 Pontiac Firebird Performance Engines

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$112.99

Use with a short water pump to convert to a long water pump.

Product Features:

Water Pump Spacer Kit

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$522.99

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early i

Product Features:

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$287.99

Product Features:

Designed for Optimum Torque and Acceleration
Maximum Performance From Idle through Mid-Range
Matched to Edelbrock Performer Intakes
Includes Hydraulic Lifters and Assembly Lube
Major Improvement in Throttle Response and Torque
Use For Daily Drivers/Trucks/Vans/RVs/4x4s
Take The Guesswork Out Of Camshaft Selection

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$36.49

Manufactured from cellulose/nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

Manufactured from cellulose/nitrile rubber composition gasket material
Provides excellent sealing and durability
Complete with molded rubber front/rear oil pan end seals where applicable
For OE replacement, high performance street, drag race and oval track use
Graphite Non-Wicking Rubber
No Cork Particles
Easy Removal For Disassembly

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$29.99

Product Features:

Timing Chain Only

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$191.99

Edelbrock part #9653 Pushrods are designed for Chevy 348/409 “W” series V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precis

Product Features:

7.2 in. Length
0.312 in. Diameter
4130 Chromoly Steel Material
Black Oxide Finish
Made In The USA

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$126.99

Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.

Product Features:

Seat pressure: 105 lbs. @ 1.700″, Open Pressure: 273 lbs. @ 1.250″
O.D.: 1.254″, I.D.: .880″
Single valve springs with damper
Approximately .490″ max lift at recommended installed height

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$52.99

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
Raises combustion sealing force to roughly three times that of standard head gaskets.
Steel wire rings for the greatest combustion seal strength.
Not intended for use in emission controlled vehicles.

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$7.99

Spectre’s Harmonic Balancer Bolt Kit is designed to fit Chevrolet Small Block 265-400 V8 engines. This grade 8 bolt is 2-1/2 inches long, and features a plated finish for corrosion resistance. This kit also includes a security lock washer.

Product Features:

Fits Chevrolet Small Block 265-400 V8 engines
Features a corrosion resistant plated finish
Gold iridite finish
Grade 8 bolt, 7/16 inch-20 by 2-1/2 inches
Includes security lock washer

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$36.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$37.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
Not intended for use in emission controlled vehicles.

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$23.99

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

Repairs That Leaky Rear Main Sail
Silicone Rubber to Withstand Extreme Engine Oil Temperatures
Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
Injection Molded for Precise Fit

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$371.99

Product Features:

High Rise/Dual Plane Design For Maximum Torque
Fully CNC Machined For A Perfect Fit
Square Bore Carburetor Flange
Exhaust Crossover For Improved Street Drivability
Permanent Mold Casting Process
Lighter/Smoother/Better Looking
More Consistent Castings

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$576.99

Product Features:

6500-10000 RPM Range
Dual Plane Quad Type – 4150 Style Flange
7.13 in. Front Height, 7.13 in. Center Height, 7.13 in. Rear Height
Satin Finish
Base Only

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$23.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
Not intended for use in emission controlled vehicles.

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$35.99

Product Features:

Valve Cover Gasket

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$31.99

Edge molded rubber water outlet gasket is reusable, great for engines that require regular disassembling for maintenance. Incorporates solid aluminum carrier for strength and rigidity. Can be used with OE replacement or aftermarket chrome water outlets. Requires no gasket sealer.

Product Features:

Edge Molded Rubber Water Outlet Gasket Is Reusable
Requires No Gasket Sealer
Solid Aluminum Carrier For Strength/rigidity
Reusable – Ideal for Engines That Are Frequently Taken Apart & Reassembled

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$152.99

Cam Lock Plate and Bolts for Factory Flat Tappet Chevrolet Small and Big Block

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$75.99

Finish your custom engine job with these show quality grade 5 chromed 12-point bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1 inch bolts with (12) 3/8 inch AN washers.

Product Features:

Chrome plated
Grade 8
12-point head
AN washers with no exposed shoulder for a professional appearance

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$65.99

Mr. Gasket screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street applications. OE style press in rocker studs can actually pull out of the cylinder head when using high lift camshafts. Includes sixteen studs 3/8-24 x 1.47 inch long top x 7/16-14 bottom.

Product Features:

Black Oxide Coated Grade 8 Steel
Kit Contains 16 Studs
Easy To Install
Heat Treated Steel
Grade 8 Steel

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$64.19

These are high quality nuts with allen set screws to provide you with that positive lock needed for Race or original equipment Rocker Arms.

Product Features:

They Are Zinc Dichromate Plated Steel
They Have Black Oxide Coated Set Screws
Keeps Rocker Arms Positively Locked
(16) Rocker Arm Nuts w/ Locks 3/8″-24 Threads
Includes Locks and Hex Wrench
Shank O.D. .603″

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$412.99

These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″ stud diameter and 1.6 ratio are designed for Chevrolet V8 265-400 applications. The new modern design features of these Ultra-Gold Rockers are proven to withstand extremely aggressive spring pressure and valve lift. Designed specifically for high performance street and race engines, the Ultra-Gold Aluminum Rocker Arms are precision CNC-machined to strict tolerances. Developed to meet the demands of professional engine builders, these rockers include features never before possible in an aluminum rocker arm.

Product Features:

CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
Designed for high performance street and race engines
Precision-sorted trunion bearings withstand elevated valve spring pressure and valve lift
Additional clearance, up to 1.650″ O.D. valve spring

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$789.99

The Holeshot Converter is a very good choice for the typical street machine that is looking for better launch capability and more strength. With a furnace brazed turbine, New turbine hub and dual pattern drive lugs on some GM Holeshots.

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

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$709.99

Holeshot 2400 for GM 1998 to 2002 4L60E Camaro and Firebird with an LS1 engine Application: GM 1998 to 2002 4L60E Camaro and Firebird with LS1 A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benef

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

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$665.99

Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:

3400-3800 RPM
Small And Big Blocks
Serious Performance
Furnace Brazed
Fully Balanced

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$17.99

Product Features:

For Small-Block Chevy
One Piece Configuration
Includes Front Cover Gasket & Front Seal
Includes Necessary Gaskets & Crankshaft Oil Seal
For Replacement Or Installation

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$41.99

Product Features:

Replacement Gasket Set For PN[4242]

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$15.99

If you are changing your camshaft or replacing the timing set, make sure to replace this seal at the same time! Metal with Nitrile rubber seal.

Product Features:

Nitrile Rubber And High Density Cork
Will Not Shrink Or Stick

Popular 1985 Pontiac Firebird Performance Engines Categories

Performance Intake Manifolds

Performance Water Outlet Gaskets

Performance Engine Water Pumps

Performance Engine Cylinder Head Gaskets

Performance Engine Camshaft and Lifter Kits

Performance Engine Harmonic Balancers

Performance Engine Intake Manifold Gaskets

Performance Engine Timing Sets and Components

Performance Engine Valve Springs

Performance Engine Valve Cover Gasket Sets

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Engine Oil Pan Gaskets

Performance Intake Manifold Hardware

Performance Engine Main Bearing Gasket Sets

Performance Engine Timing Cover Gasket Sets

Performance Engine Push Rods

Performance Torque Converters

Performance Engine Camshaft Bolts

Most Popular Performance Engine Valve Cover Gasket Sets for 1985 Pontiac Firebirds

Enhance your 1985 Pontiac Firebird with one of the 4 Performance Engine Valve Cover Gasket Sets we have in stock, starting at just $23.49.

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$23.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
Not intended for use in emission controlled vehicles.

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$23.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Die cut silicone rubber gaskets conform to out-of-flat covers
Great for on-again/off-again situations
Not intended for use in emission controlled vehicles.

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$35.99

Product Features:

Valve Cover Gasket

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$24.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
Not intended for use in emission controlled vehicles.

Best-Selling 1985 Pontiac Firebird Performance Engine Intake Manifold Gasket

Upgrade your Firebird with our best-selling Performance Engine Intake Manifold Gasket.

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from

$48.49

Mr. Gasket Ultra-Seal Intake Manifold Gasketss are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For original equipment replacement, high performance street, drag race and oval track use. Includes manifold end seals, distributor gasket and upper TPI (tuned port injection) manifold gaskets.

Product Features:

Manufactured from cellulose/nitrile composition gasket material
Provides excellent sealing and durability
Silicone beading on both sides of each gasket
Complete with manifold end seals and distributor gasket
For OE replacement, high performance street, drag race and oval track use
Creates Tight Leak proof Seal

Top-Quality Performance Engine Cylinder Head Gaskets for 1985 Pontiac Firebirds

Choose a high-quality OEM or aftermarket Performance Engine Cylinder Head Gasket for Pontiac Firebirds and enjoy top-notch performance from $39.49.

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$39.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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$52.99

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
Raises combustion sealing force to roughly three times that of standard head gaskets.
Steel wire rings for the greatest combustion seal strength.
Not intended for use in emission controlled vehicles.

from

$39.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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$111.99

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.brbrA typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:

Gasket bore – 4.060″ Thickness – .040″
Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
Optimized sealing embossments seals extreme cylinder pressure
Provides excellent stability and reduces cylinder bore distortion.
Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
For high-performance street, drag race and oval track use

Top Picks for 1985 Pontiac Firebird Performance Intake Manifolds

Invest in one of our 29 durable Performance Intake Manifolds for your 1985 Ford, knowing you’re getting trusted brands and expert craftsmanship.

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from

$257.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 Deg Firing Order
Patented Runner Design Ensures Broad Torque Curve
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used
Accepts Late-Model Choke; Waterneck; and HEI
Accepts A/C And Alternator
Accepts Exhaust Heated Chokes

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$15.49

These grade 5 socket head bolts are zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8-16 x 1 inch bolts & washers.

Product Features:

Grade 5 socket head bolts are zinc plated for protection and appearance
Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds
Washers Included

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$356.99

Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM. Dual-plane high-rise intake. For square bore carburetors only. For street and high performance use. Available in cast, polished or endurashine finish.

Product Features:

Based on Performer RPM-Series with Unique Air Gap
Air Gap Cooler and Denser Mixture for More Power
Designed for 1500 to 6500 RPM Street-Driven Power
Dual-Plane High-Rise Intake
For Square Bore Carburetors Only

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$339.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 Deg Firing Order
Patented Runner Design Ensures Broad Torque Curve
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used
Accepts Late-Model Choke; Waterneck; and HEI
Accepts A/C And Alternator
Accepts Exhaust Heated Chokes and Accepts EGR

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$322.99

Edelbrock part #2703 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent thro

Product Features:

Idle-5500 RPM Range
Dual Plane Type-4150 Style Flange
3.74 in. Front Height, 4.27 in. Center Height, 4.8 in. Rear Height
Satin Finish
Non-EGR W/ Oil Fill Tube

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$24.99

Product Features:

Replacement Gasket For PN[7070] Edelbrock Intake
One Gasket Only

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$713.99

Polished Version Of Edelbrock PN[7501]
Polish is Hand-Buffed for Brilliant Shine
Based on Performer RPM-Series with Unique Air Gap
Air Gap Cooler and Denser Mixture for More Power
Designed for 1500 to 6500 RPM Street-Driven Power
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades

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$631.99

For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.

Product Features:

For 3500 to 7500 RPM
Use Where Low-End Torque is Not a Prime Factor
Great For Engines w/Slightly Modified Heads
Top Has Vacuum Outlet for Power Brakes
Will Accept Forward and Sideways Mounted Carbs
Carburetor Center-to-Center Dimensions 8.875 in
HEI Ignition Will Not Clear Manifold
For Street Mach.; Street Rods; Pro-Street; Marine

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$608.99

Product Features:

Polished PN[54191] Hand-Buffed for Brilliant Shine
Manifold has a Balanced 180+ Firing Order
Contains Exhaust Gas Heat Riser
Offers Excellent Performance Potential
Front Oil Filler Tube Boss Included
Carburetor Center-to-Center Dimensions = 5-1/2 in
Also Available Polished PN[5419] But Not Fit HEI
Use Rochester 2GC (small 1-7/16 in bore)

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$566.99

Edelbrock part #21011 Performer intake manifold is designed for street 1955-86 small-block Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle respons

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$536.99

Air gap cooler and denser mixture for more power. Street and high performance compatible. Available in cast, polished and endurashine finish.

Product Features:

Finish-Bright Silver Chrome That Will Not Discolor
Based on C26 Low Profile with Unique Air Gap
Air Gap Cooler and Denser Mixture for More Power
1.625 in. Taller Than Low-Profile PN[5425]
Also Available As Complete Kit PN[2025/20254]
Best When Matched with Edelbrock 500cfm Carburetor
Use Fuel Line Kit PN[8088/8091]
Use Progressive Throttle Linkage Kit PN[7094]

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$514.99

Edelbrock part #5418 C-357-B Triple-Deuce intake manifold is designed for 1955-86 262-400 c.i.d. small-block Chevys, this manifold has a balanced 180-degree firing order port runner arrangement. It contains an exhaust gas heat crossover and offers excelle

Product Features:

Idle-5500 RPM Range
Dual Plane Type 6-Pack Style Flange
3.77 in. Front Height, 4.35 in. Center Height, 4.88 in. Rear Height
Satin Finish
Non-EGR

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$504.99

Product Features:

Polished Version Of Edelbrock PN[2701]
Polish is Hand-Buffed for Brilliant Shine
Maximizes Performance with Edelbrock Carburetors
Maximizes Peak Torque Around 3500 RPM
Excellent Throttle Response and Mid-Range Power
Prod. +5 HP and +9 ft/lbs. of Torque Over PN[2101]
For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 deg. Firing Order

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$494.99

Product Features:

3500-8000 RPM Range
Single Plane Type-4500 Style Flange
6.77 in. Front Height, 6.77 in. Center Height, 6.77 in. Rear Height
Satin Finish
For Raised Port 23 Degree Heads

from

$473.99

Product Features:

Designed for Idle to 5500 RPM
Manifold has a Balanced 180+ Firing Order
Contains Exhaust Gas Heat Riser
Offers Excellent Performance Potential
Front Oil Filler Tube Boss Included
Carburetor Center-to-Center Dimensions = 5-1/2 in
Also Available Polished PN[5419] But Not Fit HEI
Use Rochester 2GC (small 1-7/16 in bore)

from

$445.99

Edelbrock part #27033 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent thr

Product Features:

Idle-5500 RPM Range
Dual Plane Type-4150 Style Flange
3.74 in. Front Height, 4.27 in. Center Height, 4.8 in. Rear Height
Black Powder Coated Finish
Non-EGR W/ Oil Fill Tube

from

$404.99

Race winning design for all types of competition. Single plane maximizes torque and horsepower. Runners feature extra material for custom porting. For performance in 3500 to 7500 RPM range. Low profile design helps minimal hood clearance. Can use 1 or 2 inch spacers to tune performance. Use PN(2999) where 1 inch spacers are not allowed. Best for standard port heads.

Product Features:

Race Winning Design for all Types of Competition
Single Plane Maximizes Torque and Horsepower
Runners Feature Extra Material for Custom Porting
For Performance in 3500 to 7500 RPM Range
Low Profile Design Helps Minimal Hood Clearance
Can Use 1 Or 2 in. Spacers To Tune Performance
Use PN[2999] Where 1 in. Spacers Not Allowed
Best for Standard Port Heads

from

$381.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 Deg Firing Order
Patented Runner Design Ensures Broad Torque Curve
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used
Accepts Late-Model Choke; Waterneck; and HEI
Accepts A/C And Alternator
Accepts Exhaust Heated Chokes and Accepts EGR

from

$371.99

Product Features:

High Rise/Dual Plane Design For Maximum Torque
Fully CNC Machined For A Perfect Fit
Square Bore Carburetor Flange
Exhaust Crossover For Improved Street Drivability
Permanent Mold Casting Process
Lighter/Smoother/Better Looking
More Consistent Castings

from

$361.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used
Ideal for Light-Duty Pickups and Passenger Cars
Unique Design Allows Use Of 2 bbl Or 4 bbl Top

from

$360.99

Edelbrock part #27013 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent thr

Product Features:

Idle-5500 RPM Range
Dual Plane Type-4150 Style Flange
3.74 in. Front Height, 4.27 in. Center Height, 4.8 in. Rear Height
Black Powder Coated Finish
Non-EGR

from

$349.99

New Everbright(TM) Manifold coating now available on the most popular Weiand and Holley intakes uses proprietary vacuum metalizing technology combined with a protective clear powdercoat to provide long lasting, virtually maintenance free polished looks.

Product Features:

Low Rise/Dual Plane Design For Maximum Torque
Permanent Mold Casting Process
Lighter/Smoother/Better Looking/Consistent Casting
Dyno Proven To Make 25hp Over Competition
Fully CNC Machined For A Perfect Fit
Square Bore Carburetor Flange
Exhaust Crossover For Improved Street Drivability

from

$343.99

Strip Dominator intake manifold square bore carburetor mounting flange. Single plane with isolated plenum. Isolated water cross-over.

Product Features:

Single Plane With Isolated Plenum
Square Bore Carburetor Mounting Flange
Isolated Water Cross-Over
Power Band 4500-7600 rpm
Height Front 5.11 in. Rear 5.97 in.
Port Size 2.05 in. Height 1.22 in. Width
No Exhaust Heat Crossover Provision
Ideal For Drag Cars w/Auto Trans.

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$259.99

Product Features:

2000-6500 RPM Power Band
Single Plane/Open Plenum Design
No Provision For Divorced Or Hot Air Choke
Square Flange Carburetor Mounting

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$213.99

Throttle linkage kit for street tunnel ram. Use for sideways mounted carburetors only. Use Holley PN(0-9776) for sideways mounted applications. Not legal for sale or use on pollution controlled motor vehicles.

Product Features:

Throttle Linkage Kit for Street Tunnel Ram
Use for Sideways Mounted Carburetors Only
Use Holley PN[0-9776] For Sideways Mount Apps

from

$205.99

Product Features:

Matching Top For Edelbrock Base Intake PN[3785]
Designed for Standard Flange 4-barrel Carburetor
Contains Necessary Linkage And Bracketry
Match With Edelbrock Valve Covers Pn[4488]

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$141.99

Intake manifold base only. Match with top. For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. Top has vacuum outlet for power brakes. Carburetor center-to-center dimensions 8.875 inch. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.

Product Features:

Top Only-See PN[7119] for Complete-Bottom PN[7067]
Use Where Low-End Torque is Not a Prime Factor
Great For Engines w/Slightly Modified Heads
Top Has Vacuum Outlet for Power Brakes
Will Accept Forward and Sideways Mounted Carbs
Carburetor Center-to-Center Dimensions 8.875 in
HEI Ignition Will Not Clear Manifold
For Street Mach.; Street Rods; Pro-Street; Marine

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$113.99

Product Features:

Matching Top For Edelbrock Base Intake PN[3785]
Designed for OEM 2-barrel Carburetor
Contains Necessary Linkage And Bracketry
50-State Street Legal if Correct Carburetor Used
Accepts Stock EGR Connections
Match With Edelbrock Valve Covers Pn[4488]

from

$27.49

These grade 5 hex head bolts are black coated plated for protection and appearance. Hardened flat washers provide uniform torque and prevent galling on aluminum manifolds.

Product Features:

Assures Accurate Torque App
Prevents Galling Manifold
Grade 5 Material
Black Oxide Coasted

Performance Engine Oil Pan Gaskets for 1985 Pontiac Firebirds

Make a smart move for your 1985 Pontiac Firebird with products all priced from $27.49 to $499.99.

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$27.49

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
With steel core to provide ultimate excellent blowout resistance.
Not intended for use in emission controlled vehicles.

from

$499.99

Manufactured from cellulose and nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement, high performance street, drag race and oval track.

Product Features:

Made of high temp silicone or nitrile blend rubber
Torque limiters to prevent over tightening
One piece molded rubber
Fits left and right hand dipsticks

Top-Rated Performance Engine Brands For Your 1985 Pontiac Firebird

When it comes to finding the perfect Performance Engine for your 1985 Pontiac Firebird, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Performance Engine brands including Edelbrock, Spectre, and FEL-PRO Performance, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $7.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1985 Pontiac Firebird, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1985 Pontiac Firebird Performance Engines

If you’re looking for a top-quality Performance Engine for your 1985 Pontiac Firebird, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 3 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $37.99 and an average cost of $149.32, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1985 Pontiac Firebird come highly rated, with over 5 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $257.99

(3)

Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish

“Get the matching carb, increased HP by 50 points”

from $151.99

(1)

Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95

“Excellent product.”

from $37.99

(1)

Performer-Link Adjustable True-Roller Timing Chain Set

“When you search for ls timing chain advance pays to be top ad that pops up. Says in the headline true-roller. Yet the first question is why isn’t it s”

Top-Quality Spectre 1985 Pontiac Firebird Performance Engines

For those in search of a high-quality Performance Engine for their 1985 Pontiac Firebird, Advance Auto Parts offers a great selection of Spectre Performance Engines. With 1 Spectre Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $7.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.2 stars, Spectre Performance Engines provide both reliability and excellent performance. Choosing a Spectre Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $7.99

(1)

Chevrolet Small Block V8 Harmonic Balancer Bolt Kit

“great”

FAQs for 1985 Pontiac Firebird Performance Engines

What are the best-selling Performance Engines for 1985 Pontiac Firebirds?

Out of 77 Performance Engines that fit 1985 Pontiac Firebirds, the following parts are the top sellers:

Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (5189543) – $39.49
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (5990432) – $52.99
Valve Cover Gasket Set for Chevrolet (22342677) – $35.99

What’s the price range for 1985 Pontiac Firebird Performance Engines?

The prices of Performance Engines for the 1985 Pontiac Firebird range from $7.99 up to $1,517.99 for the most premium parts.

What is the average price of a Performance Engines Performance Engine for a 1985 Pontiac Firebird?

The average price for Performance Engines for the 1985 Pontiac Firebird is $294.22. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other Pontiac Firebird model years?

Yes, we carry Performance Engines for 34 model years of Pontiac Firebirds between 1967 and 2002. The following model years are the most popular for Performance Engine purchases: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, and 1994.

What are the cheapest Performance Engines for my 1985 Pontiac Firebird?

The cheapest 1985 Pontiac Firebird Performance Engines we carry are:

Chevrolet Small Block V8 Harmonic Balancer Bolt Kit (22905376) – $7.99
Intake Manifold Bolts (6120970) – $15.49
Timing Cover Seal (17360181) – $15.99
Front Timing Cover Gasket Set #6997 For Small-Block Chevy, With Front Seal (22342143) – $17.99
Engine Timing Cover Gasket (21021905) – $20.29

Does Advance Auto Parts sell Performance Engines for any other 1985 Pontiac models?

Yes. We stock Performance Engines for 5 other popular 1985 Pontiac models. Some of the most popular are 1985 Grand Prix Performance Engines, 1985 Bonneville Performance Engines, 1985 Parisienne Performance Engines, 1985 6000 Performance Engines, and 1985 Fiero Performance Engines.

What are the top-rated Performance Engines that fit the 1985 Pontiac Firebird?

Based on 204 reviews by customers, our 1985 Pontiac Firebird Performance Engines have an average customer rating of 4 stars. These are the highest-rated categories of Performance Engines for the 1985 Pontiac Firebird and their top-rated products:

Performance Engine Harmonic Balancers
- Chevrolet Small Block V8 Harmonic Balancer Bolt Kit (22905376) – $7.99
Performance Water Outlet Gaskets
- Premium Quality Thermostat Gasket with Solid Aluminum Carrier (6900023) – $31.99

What types of Performance Engines do you sell for my 1985 Pontiac Firebird?

As of 4/10/25, these are some of the most in-demand types of Performance Engines for a 1985 Pontiac Firebird:

Can I get help with 1985 Pontiac Firebird Performance Engine orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Performance Engines and more.

What is your return policy for Pontiac Firebird Performance Engines?

Advance Auto Parts keeps returns simple. For new Pontiac Firebird Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1985 Pontiac Firebird Performance Engines

Weiand – Team G; Water Pump Spacer Kit (Part No.8207)

Competition Cams – CAMSHAFT, SBC 291 MUTHA THUMPR HYDRAULIC ROLLER 1 EA (Part No.12-601-8)

Edelbrock – Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet (Part No.2102)

Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.5884)

Edelbrock – TIMING CHAIN (Part No.7844)

Edelbrock – Pushrod Set for S/B Chevy (Part No.9653)

Competition Cams – Set of 16 Single Springs w/ 1.254" O.D., 1.254" I.D., 1.700" Installed Height (Part No.981-16)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Spectre – Chevrolet Small Block V8 Harmonic Balancer Bolt Kit (Part No.4699)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: Includes Sealer, 3 Piece Set (Part No.1284)

FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2919)

Mr. Gasket – Rear Main Seal Gasket (Part No.1960)

Weiand – Stealth; Intake Manifold (Part No.8150P)

Edelbrock – Victor Ram 23-Degree Intake Manifold Base for Small-Block Chevy (Part No.7070)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1603)

Edelbrock – Valve Cover Gasket Set for Chevrolet (Part No.7549)

Mr. Gasket – Premium Quality Thermostat Gasket with Solid Aluminum Carrier (Part No.738G)

Competition Cams – Cam Lock Plate and Bolts for Factory Flat Tappet Chevrolet Small and Big Block (Part No.4605)

Mr. Gasket – Intake Bolt Kit (Part No.5003)

Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Mr. Gasket – Ultra Seal: Sure-Lock Rocker Arm Nuts (Part No.920G)

Competition Cams – Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Chevrolet Small Block w/ 3/8" Stud (Part No.19002-16)

B & M – Torque Converter, Holeshot 3000 (Part No.70421)

B & M – Holeshot 2400 (Part No.70441)

B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Edelbrock – Front Timing Cover Gasket Set #6997 For Small-Block Chevy, With Front Seal (Part No.6997)

Edelbrock – Replacement Timing Cover Gasket #4243 For SB Chevy, Fits 2-Piece Part #4242 (Part No.4243)

Mr. Gasket – Timing Cover Seal (Part No.18)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1603)

FEL-PRO Performance – PERFORMANCE VALVE COVER GASKET SET (Part No.1602)

Edelbrock – Valve Cover Gasket Set for Chevrolet (Part No.7549)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1624)

Mr. Gasket – Ultra Seal Iii: Intake Gasket (Part No.5851)

FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1010)

Mr. Gasket – Mls Head Gasket (Part No.3130G)

Edelbrock – Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish (Part No.2101)

Mr. Gasket – Intake Manifold Bolts (Part No.955G)

Edelbrock – Performer RPM Small Block Chevy AIR-Gap Intake Manifold (Part No.7501)

Edelbrock – Performer Small-Block Chevy Intake Manifold for Street Performance (Part No.3701)

Edelbrock – Performer EPS Intake Manifold w/ Oil Fill Tube for 1955-86 Small-Block Chevy (Part No.2703)

Edelbrock – Intake Manifold replacement top gasket (Part No.6988)

Edelbrock – Performer RPM AIR-Gap Small Block Chevy Polished Intake Manifold (Part No.75011)

Edelbrock – Street Tunnel Ram Small Block Chevy Intake Manifold (Part No.7110)

Edelbrock – C357-B Three-Deuce Intake Manifold #54191 1964-1983 Small-Block Chevy, Polished (Part No.54191)

Edelbrock – Performer Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish (Part No.21011)

Edelbrock – RPM AIR-Gap Dual-Quad Small Block Chevy Endurashine Intake Manifold (Part No.75254)

Edelbrock – C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys (Part No.5418)

Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish (Part No.27011)

Edelbrock – Super Victor 4500 for Raised Port 23 Degree Intake Manifold Small-Block Chevy (Part No.2971)

Edelbrock – C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern (Part No.5419)

Edelbrock – Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish (Part No.27033)

Edelbrock – Victor Jr. 23 Degree Intake Manifold Small-Block Chevy (Part No.2975)

Edelbrock – Performer Intake Manifold Small-Block Chevy (Part No.3706)

Weiand – Stealth; Intake Manifold (Part No.8150P)

Edelbrock – Performer Small-Block Chevy 2.8L Intake Manifold (Part No.3785)

Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Black Finish (Part No.27013)

Weiand – Action +Plus; Intake Manifold (Part No.8120P)

Holley – Strip Dominator; Intake Manifold (Part No.300-25)

Weiand – X-CELerator; Intake Manifold (Part No.7547-1)

Edelbrock – Side-Mount Throttle Linkage for S/B Chevy #7110 Street Tunnel Ram Manifold (Part No.7071)

Edelbrock – Performer Top Small-Block Chevy 4V Intake Manifold (Part No.3789)

Edelbrock – TR1-Y Small Block Chevy Top Only Intake Manifold (Part No.7032)

Edelbrock – XX Performer EGR Top Intake Manifold (Part No.3787)

Mr. Gasket – Super Intake Manifold Bolts (Part No.6080)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1818)

Mr. Gasket – Engine Sealing (Part No.6560)