1985 Pontiac Firebird Performance Engines

Name: Bolt Water Pump
Brand: Mr. Gasket
SKU: 4996
Price: 42.99 USD

Please Select your Vehicle to See Exact Fit Parts

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 Coolant Thermostats, 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, Competition Cams, and FEL-PRO Performance. For example, Edelbrock Performance Engines start at just $64.99 with an average 4.4 star rating. Competition Cams and FEL-PRO Performance offer similar pricing and quality, backed by strong customer feedback. With over 446 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 $263.52, with a range that starts at $7.99 and goes up to $1,201.99. With 202 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Intake Manifold Gasket for 1958-1986 Small-Block Chevy, and Premium Quality Thermostat Gasket with Solid Aluminum Carrier start at just $28.99 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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$42.99

This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners and AN style washers to install the water pump on your small block Chevrolet with the short style water pump. AN washers have no exposed shoulder which offers a professional appearance. Includes one 3/8 inch-16 x 2-1/2 bolt, three 3/8 inch-16 x 1-3/4 inch bolts, and four 3/8 inch AN washers.

Product Features:

Chrome plated
Grade 5
AN washers with no exposed shoulder for a professional appearance

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$64.99

Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:

For Use With Cast Iron Heads
Springs Made of Highest Quality Spring Wire
Springs Precision Wound To Close Tolerances
Use with Original Equipment Heads Only

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$8.99

Raised 1 Piece Guide Plate For Chevrolet Small Block With 5/16" Pushrod 7/16" Stud

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$61.99

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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$37.99

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

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

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$149.99

Includes: 2 short flat black valve covers 2 valve cover gaskets 1 flat black push-on breather 1 flat black dipstick & tube 1 flat black timing chain cover 1 flat black timing tab 1 rubber grommet for valve cover PCV hole 1 breather grommet

Product Features:

Ideal Starter Kit
Enhances Appearance

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$35.49

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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$32.49

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

Opens At 195 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$15.99

Roller cam lobes are ground flat rather than tapered like a flat tappet cam; it is necessary to provide some means of holding the cam back to the rear of the engine. The thrust button rides between the front of the timing gear and the back of the front cover and can be shimmed for proper end play of the cam. COMP Cams has both the solid nylon button and the roller thrust bearing available for the ultimate in performance.

Product Features:

.810″ Length
Ride between the front of the timing gear and the back of the timing cover
Can be shimmed to achieve proper endplay
Solid nylon and roller thrust bearing styles available

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$63.99

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

Product Features:

Rigid core, molded silicone rubber gaskets utilize the one-piece molded rubber technology for a perfect fit, ease of installation and include compression limiters to prevent overtightening.
Not intended for use in emission controlled vehicles.

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$34.99

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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$217.99

These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed

Product Features:

Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
For applications with less than 350 lbs. of open spring pressure
Constructed from 8620 chromemoly steel, a superior material that will not flex and ensures maximum lift
Ultimate street roller rocker arm designed for serious performance enthusiasts

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$297.99

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:

Excellent performance in street carbureted applications.
More vacuum allows an increase in duration for improved performance and assists power brakes.
Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$459.99

Similar in performance to the Holeshot series, the Tork Master is B&M’s lowest cost torque converter. The Tork Master is an excellent all-around performance street converter. The best ‘value priced’ street converters available.

Product Features:

New Precision Pump Drive Tube
Pressure Tested
Fully Balanced
Needle Thrust Bearing
New Thrust Washer

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$10.99

Spectre’s Intake Bolt and Washer Set is engineered to provide premium quality hardware for Chevrolet 265-400 and Chrysler 273-440 small block engines. Measuring 3/8 inch-16 by 1 inch, these grade 5 bolts feature a corrosion resistant zinc-plated finish and hex heads to ensure easy installation. This kit includes 12 bolts and washers.

Product Features:

Designed for Chevrolet 265-400 and Chrysler 273-440 small block engines
3/8 inch-16 by 1 inch bolts
Kit includes 12 bolts and washers
Manufactured from high quality steel
Bolts feature hex heads

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$216.99

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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$201.99

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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$39.99

Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6

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$223.99

COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.

Product Features:

Work with .530″ guides and 11/32″ valve stem diameter
Valve stem oil seals keep unwanted oil from entering the combustion chamber
Several different types of valve seals are offered

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$85.99

Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455

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$85.99

This 7 Degree steel retainer for No. 26915 or No. 26918 Valve Springs in Non Gen III Engines is precision machined from 4140 chromemoly steel and finished in black oxide. This precision retainer is specifically designed for positive location when combined with COMP Cams high-quality valve springs.

Product Features:

7 Degree angle retainers for 1.055″ diameter valve springs, 11/32″ Valve Stems
O.D. – 1.030″, Step 1 – .640″
Precision machined from 4140 chromemoly steel and finished in black oxide
Designed for positive location when combined with COMP Cams high-quality valve springs

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$10.99

10 Degree Steel Retainer for 26120 Beehive Spring

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$49.99

Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. This is a low density material that conforms well to irregular surfaces and has very good crush resistance at high flange pressures. They provide excellent sealing and durability as the material is designed for sealing gasoline, oils, water and coolant in applications up to 350 degrees Fahrenheit. While die-cut for an excellent fit, they can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

Manufactured from cellulose/nitrile composition gasket material
Provides excellent sealing and durability
Die-cut for an excellent fit
Can be trimmed if necessary for modified port applications
For OE replacement, high performance street, drag race and oval track use

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$31.99

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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$471.99

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.

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.

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$338.99

SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Magnum: Street/strip special, 3000 stall, headers, gears, 9.5:1+ compression. Very rough idle. OR Drag Race: 3000+ stall in heavy car with 10:1+ compression.

Product Features:

Cam and lifter kit for Small Block Chevy engines
CL-Kit includes cam, lifters, assembly lube, instructions and decals
HYDRAULIC – Magnum: Street/strip special, 3000 stall, headers, gears, 9.5:1+ compression. Very rough idle. OR Drag Race: 3000+ stall in heavy car with 10:1+ compression.
292/292 Advertised Duration, 244/244 Duration @ .050″, .501″/.501″ Lift, 110 Lobe Separation
Valve spring upgrade required

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$15.49

This is a high quality bolt set that is made of grade 8 steel and will meet your requirements for a quality bolt set, this set will work on original equipment, high performance street, drag or circle track applications.

Product Features:

Has A Zinc Dichromate Finish
Made Of High Quality Grade 8 Steel
Has A Tall Hex Head To Prevent Wrench Slipping Off
Extra Thick Parallel Ground Washer
Washer Provides More Accurate And Uniform Torque

Popular 1985 Pontiac Firebird Performance Engines Categories

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Water Outlet Gaskets

Performance Engine Dress-Up Kits

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 Valve Lifters

Performance Engine Main Bearing Gasket Sets

Performance Engine Push Rod Guideplates

Performance Engine Camshaft Thrust Buttons

Performance Engine Push Rods

Performance Engine Valve Spring Retainer

Performance Torque Converters

Performance Engine Valve Stem Seal Sets

Most Popular Performance Engine Coolant Thermostats for 1985 Pontiac Firebirds

Enhance your 1985 Pontiac Firebird with one of the 3 Performance Engine Coolant Thermostats we have in stock, starting at just $29.99.

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$29.99

Opens At 180 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$29.99

Opens at 160 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully opens at Correct Temperature Consistently Regardless of engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

from

$32.49

Opens At 195 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

Best-Selling 1985 Pontiac Firebird Performance Engine Intake Manifold Gasket

Upgrade your Firebird with our best-selling Performance Engine Intake Manifold Gasket with a 3.5 Starts rating across 12 reviews.

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$28.99

Product Features:

Clean Positive Seal
Embossed Silicone Bead Surrounding The Port
Matched To Manifolds And Cylinder Heads

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 $42.49.

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$42.49

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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$44.99

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

$51.99

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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$61.99

Product Features:

4.125 in. Cylinder Bore Diameter
0.039 in. Thickness
8.7cc Volume
Charcoal Color
Two Piece Configuration

Our Top Pick for a 1985 Pontiac Firebird Performance Engine Harmonic Balancer

Invest in a durable Performance Engine Harmonic Balancer for your 1985 Pontiac, knowing you’re getting trusted brands and expert craftsmanship.

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from

$15.49

Has A Zinc Dichromate Finish
Made Of High Quality Grade 8 Steel
Has A Tall Hex Head To Prevent Wrench Slipping Off
Extra Thick Parallel Ground Washer
Washer Provides More Accurate And Uniform Torque

Top-Rated Performance Intake Manifolds for 1985 Pontiac Firebirds

Make a smart move for your 1985 Pontiac Firebird with products all priced from $21.99 to $749.99.

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$195.99

Edelbrock part No. 2701 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 throttle response. With that the Edelbrock Performer EPS intake manifold has a runner design that’s “tuned” for peak torque at 3500 rpm on a 350-inch engine making it ideal for power from off-idle to 5500 rpm. Dyno tests showed gains of 5 hp and 9 ft-lbs. of torque over the Edelbrock Performer manifold No. 2101 on a 350 Chevy. From 3000 to 4500 rpm, the power increases averaged 5+ ft-lbs. of torque for more performance where you need it most. PLEASE NOTE: Will not fit under stock Corvette hood!

Product Features:

Maximizes Performance with Edelbrock Carburetors
Runners Tuned to Match Square Bore Carburetor
Maximizes Peak Torque Around 3500 RPM
Excellent Throttle Response and Mid-Range Power
For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 deg. Firing Order
Prod. +5 HP and +9 ft/lbs. of Torque Over PN[2101]
PLEASE NOTE: Will not fit under stock Corvette hood!

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$279.99

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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$374.99

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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$356.99

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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$339.99

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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$21.99

Product Features:

Replacement Gasket For PN[3789] Edelbrock Intake
One Gasket Only
Goes Between Base pn[3785] And Top PN[3789]
Also Included in Base PN[3789]

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$26.99

Product Features:

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

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$749.99

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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$663.99

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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$530.99

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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$519.99

For 3500-8500 RPM high performance engines. Not for sale or use on pollution controlled motor vehicles. For racing use only. Extended Constant cross-section of runners. Great mid-range torque for short track power. Improved throttle response for 60 feet times. Direct line of sight flow path maximizes flow. For 4500 series carburetors and 23 degree heads. Highly efficient cloverleaf plenum design. Runners have large 3.20 square inch cross section. Not for sale or use on pollution controlled motor vehicles. For racing use only.

Product Features:

For 3500 to 8000 RPM High-Performance Engines
Extended Constant Cross-Section of Runners
Great Mid-Range Torque For Short Track Power
Improved Throttle Response For 60 ft. Times
Direct Line of Sight Flow Path Maximizes Flow
For 4500 Series Carburetors and Raised Port Heads
Highly Efficient Cloverleaf Plenum Design
Runners have Large 3.20 square in. Cross Section

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$509.99

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

Product Features:

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 In EnduraShine Finish PN[75254]
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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$497.99

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)

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$425.99

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

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$401.99

Product Features:

from

$286.99

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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$224.99

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

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$216.99

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]

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 7 trusted brands. We carry the most popular Performance Engine brands including Edelbrock, Competition Cams, 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 $31.99. 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 $64.99 and an average cost of $180.32, 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 12 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 $64.99

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Sure Seat Valve Springs for Chevy 262-400 V8 1957-95

“Used with the smallest Comp Thumpr Cam, good to 5500 RPM, Cost is great, No valve float. I would use again with a samll to medium cam and 416 heads.”

from $195.99

(7)

Performer EPS Intake Manifold for 1955-86 Small-Block Chevy

“Great product and great price”

from $279.99

(3)

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

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

Top-Quality Competition Cams 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 Competition Cams Performance Engines. With 3 Competition Cams 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 $83.99, with an average price of $175.32, giving you a range of options to suit your budget. Backed by over 5 customer ratings and an average rating of 4.2 stars, Competition Cams Performance Engines provide both reliability and excellent performance. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $83.99

(3)

TIMING SET, HIGH TECH SMALL BLOCK CHEVY 1 EA

“No instructions but easy to figure out. A little hard to press fit everythinf together. It does the job though and my windows work like new.”

from $223.99

(1)

Valve Seals, O-Ring 11/32" 1 St

“Replaced as original, super easy to install!”

from $217.99

(1)

MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST

“just spill on break in oil on rocker wheels,adjust nut down till u can’t go any more and then back off 1/2 turn and your done no noise on start up eve”

FAQs for 1985 Pontiac Firebird Performance Engines

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

Out of 202 Performance Engines that fit 1985 Pontiac Firebirds, the following parts are the top sellers:

Performer EPS Intake Manifold for 1955-86 Small-Block Chevy (17340006) – $195.99
Intake Manifold Gasket for 1958-1986 Small-Block Chevy (17140110) – $28.99
Premium Quality Thermostat Gasket with Solid Aluminum Carrier (6900023) – $35.49

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 $1,201.99 for the most premium parts.

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

The average price for Performance Engines for the 1985 Pontiac Firebird is $263.52. 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:

High Energy 7.794" Long, 5/16" Diameter Pushrod (50289688) – $7.99
High Energy 9.677" Long, 5/16" Diameter Pushrod (50289705) – $8.99
Engine Valve Spring (50286657) – $9.99
Bolt Kit Intake Hex Head (22905656) – $10.99
Engine Valve Spring (50286858) – $11.99

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 446 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 Timing Sets and Components
- TIMING SET, HIGH TECH SMALL BLOCK CHEVY 1 EA (10214923) – $83.99
- High Energy Timing Set (10214805) – $66.99
Performance Engine Valve Springs
- Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (5027381) – $64.99
- Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (17140458) – $159.99

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

As of 6/2/26, 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

Mr. Gasket – Bolt Water Pump (Part No.4996)

Edelbrock – Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (Part No.5802)

Competition Cams – Raised 1 Piece Guide Plate For Chevrolet Small Block With 5/16" Pushrod 7/16" Stud (Part No.4800-1)

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1000)

FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2912)

Mr. Gasket – Engine Dress-Up Kit (Part No.9834BP)

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

Mr. Gasket – High Performance Thermostat (Part No.4365)

Competition Cams – Cam Button, Chevy Small Block & 90 Degree V6 Polymer Material (Part No.202)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1886)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1622)

Competition Cams – MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST (Part No.1412-16)

Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam (Part No.42-225-4)

B & M – Tork Master 2000: Value-Priced Street Performance Torque Converter (Part No.70420)

Spectre – Bolt Kit Intake Hex Head (Part No.4652)

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

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

Competition Cams – Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6 (Part No.875-1)

Competition Cams – VALVE SEALS, 11/32" TEFLON 1 ST (Part No.503-16)

Competition Cams – Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455 (Part No.2113)

Competition Cams – 7 Degree Steel Retainers: 1.055" Spring Diameter, Designed to handle higher pressures (Part No.787-16)

Competition Cams – 10 Degree Steel Retainer for 26120 Beehive Spring (Part No.795-1)

Mr. Gasket – Intake Gasket (Part No.143)

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

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam and Lifter Kit (Part No.CL42-600-5)

Competition Cams – Magnum/Drag Race 244/244 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-213-3)

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.945G)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

Mr. Gasket – High Performance Thermostat (Part No.4365)

Edelbrock – Intake Manifold Gasket for 1958-1986 Small-Block Chevy (Part No.7201)

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)

Edelbrock – Cylinder Head Gasket Set for Chevrolet, 4.125 Bore Size (Part No.7310)

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.945G)

Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy (Part No.2701)

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

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 runner to base gaskets (Part No.6942)

Edelbrock – Intake Manifold Replacement Top Gasket for No. 7070 Intake Manifold (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 – 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 – Performer RPM AIR-Gap Small Block Chevy Dual-Quad Intake Manifold (Part No.7525)

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

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

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

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)