1985 Pontiac Firebird Performance Engines

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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 Valve Cover Gasket Sets, 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 Competition Cams, Edelbrock, and FEL-PRO Performance. For example, Competition Cams Performance Engines start at just $66.99 with an average 4.0 star rating. Edelbrock and FEL-PRO Performance offer similar pricing and quality, backed by strong customer feedback. With over 523 reviews and a solid 4.6 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 $330.75, with a range that starts at $8.99 and goes up to $1,332.99. With 95 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701, FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1003, and Spectre Bolt Kit Intake Hex Head, 4652 start at just $10.99 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.

Essential 1985 Pontiac Firebird Performance Engines

Competition Cams – Competition Cams High Energy Timing Set for ’62-’77 B.O.P. 198-231 V6, 3215 (Part No.3215)

Competition Cams High Energy Timing Set for '62-'77 B.O.P. 198-231 V6, 3215

from

$55.99
Competition Cams High Energy Timing Set for ’62-’77 B.O.P. 198-231 V6, 3215.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1818 (Part No.1818)

FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1818

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$27.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Socket Head, 956G (Part No.956G)

Mr. Gasket Intake Manifold Bolt Set - Socket Head, 956G

from

$21.49
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8 inch-16 x 1 inch bolts & washers.
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Edelbrock – Edelbrock Small-Block Chevy E-Street Cylinder Head 70cc Pair, 5073 (Part No.5073)

Edelbrock Small-Block Chevy E-Street Cylinder Head 70cc Pair, 5073

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$1332.99
Edelbrock Small-Block Chevy E-Street Cylinder Head 70cc Pair, 5073.
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Edelbrock – Edelbrock Performer-Plus Camshaft Kit, 2157 (Part No.2157)

Edelbrock Performer-Plus Camshaft Kit, 2157

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$376.99
“Edelbrock Performer-Plus Camshaft No: 2157 is designed for 350-455 Pontiac V8 engines and produce optimum torque from the low-end to the mid-range. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. The Performer-Plus No: 2157 is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you’ll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 387HP and 439 Ft Lbs of Torque when paired with Performer intake manifold No: 2156 and Performer RPM cylinder heads No: 60599. Camshaft specifications: – Intake duration: 204 Degrees – Exhaust duration: 214 Degrees – Intake lift: .420″” – Exhaust lift: .442″” – Lobe separation: 110 Degree – Intake Center Line: 105 Degree – Vacuum: 15″””
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Competition Cams – Competition Cams XFI RPM HI-LIFT 228/230 Hydraulic Roller Cam, 54-428-11 (Part No.54-428-11)

Competition Cams XFI RPM HI-LIFT 228/230 Hydraulic Roller Cam, 54-428-11

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$541.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.
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Competition Cams – Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam and Lifter Kit, CL51-224-4 (Part No.CL51-224-4)

Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam and Lifter Kit, CL51-224-4

from

$416.99
PONTIAC HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: High performance street, very strong mid-range, headers and 2200+ stall.
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Edelbrock – Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738 (Part No.9738)

Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738

from

$134.99
Edelbrock part No: 9738 Performer-Plus lifter set for S/B & B/B Chevy is designed for use with Edelbrock Performer-Plus or equivalent camshafts. Sold in complete sets.
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Edelbrock – Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7812 (Part No.7812)

Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7812

from

$83.99
Edelbrock part No: 7812 Performer-Link timing chain is for use with Edelbrock or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. Cam sprockets are made from 35,000 psi tensile strength cast iron. Crank sprockets are made from billet SAE-1144 steel and induction heat treated. Four Performer-Link sets are stock replacement parts and 50-state legal (see listings in bold type). All other sets have three keyway setting points to ensure accurate timing selection for early or late-model vehicles. Performer-Link timing sets are not for use above 6500 rpm. Performer roller chain sets are engineered to operate up to 6500 rpm. Never hammer directly on chain or sprockets. You can crack the hardened links and pins and cause early failures. Use a sleeve for installations that require hammering, a brass drift punch may be used if you carefully alternate blows on either side of the sprocket to avoid cocking. Never stretch the chain with a screwdriver. Check for clearance between the timing chain and block and between the chain and front cover before reassembly. Be sure that both cam and crank sprockets are exactly in line with each other. Misalignment can cause chain to break.
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Spectre – Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699 (Part No.4699)

Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699

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$8.99
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.
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Mr. Gasket – Mr. Gasket Complete Engine Bolt Kit, 5001 (Part No.5001)

Mr. Gasket Complete Engine Bolt Kit, 5001

from

$223.99
This Mr. Gasket Deluxe Engine Bolt Kit includes chrome plated grade 5 hex head fasteners with AN type washers for the following: Intake Manifold, Timing Cover, Oil Pan, Fuel Pump, Water Neck, Long Water Pump and Headers. The AN washers have no exposed shoulder which offers a professional appearance.
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Mr. Gasket – Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363 (Part No.4363)

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

from

$31.99
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.
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Edelbrock – Edelbrock Water Pump for Small-Block Chevy in Black Finish (Long), 88113 (Part No.88113)

Edelbrock Water Pump for Small-Block Chevy in Black Finish (Long), 88113

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$378.99
Edelbrock Water Pump for Small-Block Chevy in Black Finish (Long), 88113.
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Edelbrock – Edelbrock Side-Mount Throttle Linkage, 7071 (Part No.7071)

Edelbrock Side-Mount Throttle Linkage, 7071

from

$224.99
Edelbrock No: 7071 Throttle linkage kit for small block Chevy Tunnel Ram Top 7073 with sideways mount carburetors.
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B & M – B & M Holeshot 3000, 70442 (Part No.70442)

B & M Holeshot 3000, 70442

from

$1117.99
This Holeshot 3000 is for all 1998-02 GM Camaro/Firebirds, 1999-06 GM1500 trucks/SUV’s with LS1, 4.8L, 5.3L, or 6.0L engine and 4L60E or 4L65E transmission. This converter retains the lock-up feature. Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Will Not fit 1997-05 Corvette. Has both 10.75 and 11.08-inch bolt circles
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Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Competition Cams – Competition Cams 7 Degree Tool Steel Retainer for 8mm Valve with 26926 Springs, 1779-1 (Part No.1779-1)

Competition Cams 7 Degree Tool Steel Retainer for 8mm Valve with 26926 Springs, 1779-1

from

$27.99
“CNC-machined for consistency, this 7 degree tool steel retainer features light weight, exceptional strength and wear characteristics. Fits 8mm valve engines with a 1.290″” O.D. spring such as our 26926 springs.”
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Competition Cams – Competition Cams ALUMINUM GOLD ROCKER ARMS, SBC 1 ST, 19001-16 (Part No.19001-16)

Competition Cams ALUMINUM GOLD ROCKER ARMS, SBC 1 ST, 19001-16

from

$406.99
“These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″” stud diameter and 1.5 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.”
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Mr. Gasket – Mr. Gasket Rear Main Seal Gasket, 1960 (Part No.1960)

Mr. Gasket Rear Main Seal Gasket, 1960

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$29.39
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.
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Edelbrock – Edelbrock Replacement Timing Cover Gasket, 4243 (Part No.4243)

Edelbrock Replacement Timing Cover Gasket, 4243

from

$44.99
Edelbrock part No: 4243 Replacement Gasket Kit Edelbrock Two-Piece Small-Block Chevy timing covers.
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Competition Cams – Competition Cams Valve Seals, 503-16 (Part No.503-16)

Competition Cams Valve Seals, 503-16

from

$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.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640 (Part No.1640)

FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640

from

$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Edelbrock – Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630 (Part No.9630)

Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630

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$209.99
“Edelbrock part No: 9630 Pushrods are designed for small-block Chevy 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 precise formed wedged ends for a high quality fit with the cup seats. A black oxide finish is added for corrosion resistance. Pushrod Specifications: – Outside Diameter: 5/16″” – Length: 7.8″” – Stock length”
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Competition Cams – "Competition Cams Magnum 8.280"" Long, .080"" Wall, 3/8"" Diameter Pushrod Set of 8, 7131-8" (Part No.7131-8)

"Competition Cams Magnum 8.280"" Long, .080"" Wall, 3/8"" Diameter Pushrod Set of 8, 7131-8"

from

$80.99
“Competition Cams Magnum 8.280″” Long, .080″” Wall, 3/8″” Diameter Pushrod Set of 8, 7131-8. ”
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Competition Cams – Competition Cams Valve Springs, 26918-16 (Part No.26918-16)

Competition Cams Valve Springs, 26918-16

from

$288.99
“With a .625″” maximum lift, these Beehive Valve Springs were designed for hydraulic roller cams in LS1, LS2 and LS6 engines. COMP Cams Beehive Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life. Because of the unique Beehive design, the valve train can handle more RPM and more aggressive cam profiles.”
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Competition Cams – "Competition Cams Valve Spring Kit, For Ls 1.310"" Beehive 1 Kt, 26915CS-KIT" (Part No.26915CS-KIT)

"Competition Cams Valve Spring Kit, For Ls 1.310"" Beehive 1 Kt, 26915CS-KIT"

from

$471.99
“Competition Cams Valve Spring Kit, For Ls 1.310″” Beehive 1 Kt, 26915CS-KIT. ”
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Edelbrock – Edelbrock Engine Gasket Set, 7361 (Part No.7361)

Edelbrock Engine Gasket Set, 7361

from

$146.99
The Edelbrock No: 7361 head gaskets provide the best sealing solution and are matched to Edelbrock cylinder heads for optimal performance. Edelbrock relies on industry leading head gasket manufactures to ensure our head gasket sets will provide the best fit and sealing properties when used with Edelbrock aluminum cylinder heads. Edelbrock head gaskets are manufactured from high-density materials and feature a superior design that performs under pressure and provides a long-lasting seal, without re-torqueing.
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FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010 (Part No.1010)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010

from

$51.99
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.
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Most Popular Performance Engine Coolant Thermostat for 1985 Pontiac Firebirds

Enhance your 1985 Pontiac Firebird with this popular Performance Engine Coolant Thermostat we have in stock, for $31.99.

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

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

from

$31.99
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.
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Best-Selling 1985 Pontiac Firebird Performance Engine Valve Cover Gasket Sets

Upgrade your Firebird with one of our 4 best-selling Performance Engine Valve Cover Gasket Sets, earning an average 5 stars rating across 2 reviews.

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

FEL-PRO Performance Engine Valve Cover Gasket Set, 1603

from

$31.99
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.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1602 (Part No.1602)

FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1602

from

$23.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Mr. Gasket – Mr. Gasket Ultra Seal: Valve Cover Gasket Set, 5860 (Part No.5860)

Mr. Gasket Ultra Seal: Valve Cover Gasket Set, 5860

from

$33.59
Ultra-Seal is Mr. Gasket premium valve cover gasket material. It’s manufactured from a high density cork and rubber blend to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair. These gaskets are .187 inch thick.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1624 (Part No.1624)

FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1624

from

$24.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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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.

FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1003 (Part No.1003)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1003

from

$42.49
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.
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FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1004 (Part No.1004)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1004

from

$44.99
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.
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FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010 (Part No.1010)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010

from

$51.99
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.
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Edelbrock – Edelbrock Engine Gasket Set, 7361 (Part No.7361)

Edelbrock Engine Gasket Set, 7361

from

$146.99
The Edelbrock No: 7361 head gaskets provide the best sealing solution and are matched to Edelbrock cylinder heads for optimal performance. Edelbrock relies on industry leading head gasket manufactures to ensure our head gasket sets will provide the best fit and sealing properties when used with Edelbrock aluminum cylinder heads. Edelbrock head gaskets are manufactured from high-density materials and feature a superior design that performs under pressure and provides a long-lasting seal, without re-torqueing.
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Our Top Pick for a 1985 Pontiac Firebird Performance Water Outlet Gasket

Invest in a durable Performance Water Outlet Gasket for your 1985 Pontiac, knowing you’re getting trusted brands and expert craftsmanship.

Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Top-Rated Performance Intake Manifolds for 1985 Pontiac Firebirds

Make a smart move for your 1985 Pontiac Firebird with products all priced from $18.79 to $849.99.

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

Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701

from

$227.99
“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!”
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set, 6091 (Part No.6091)

Mr. Gasket Intake Manifold Bolt Set, 6091

from

$39.29
These special Grade 8 intake manifold bolts feature a 12-point smaller-than-standard head and flange, and include special extra thick flat washers for optimum clamping pressures. They’re ideal for use where space is minimal, typical on larger runner race manifolds. These bolts and washers are bright zinc plated for protection and good looks.
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Hex Head, 955G (Part No.955G)

Mr. Gasket Intake Manifold Bolt Set - Hex Head, 955G

from

$18.79
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.
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Edelbrock – Edelbrock Performer RPM Small Block Chevy AIR-Gap Intake Manifold, 7501 (Part No.7501)

Edelbrock Performer RPM Small Block Chevy AIR-Gap Intake Manifold, 7501

from

$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.
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Edelbrock – Edelbrock Torker II Intake Manifold Small-Block Chevy, 5001 (Part No.5001)

Edelbrock Torker II Intake Manifold Small-Block Chevy, 5001

from

$281.99
Edelbrock part #5001 Torker II intake manifold is designed for 1955-86 high-performance’s street 262-400 c.i.d. small-block Chevys. This Torker manifold is a singe plane low rise intake that’s great for high performance applications that have limited hood clearance. The manifold has an exhaust crossover for easy cold weather warm-ups, but no provisions for exhaust heated chokes or EGR. Customers will need either electric or manual choke carburetors. Accepts late-model water neck, air-conditioning, alternator and H.E.I. Intake manifold will fit Corvette and ’87 and later stock heads. Will not fit ’87 and later cast iron heads and will not cover port openings of Chevrolet Bowtie or LT1 heads. Not for heavy vehicles (trucks, vans etc.)
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Edelbrock – Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701 (Part No.3701)

Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701

from

$359.99
Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701.
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Weiand – Weiand Action +Plus Intake Manifold, 8120 (Part No.8120)

Weiand Action +Plus Intake Manifold, 8120

from

$254.99
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.
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Edelbrock – Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425 (Part No.5425)

Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425

from

$530.99
Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425.
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Weiand – Weiand Stealth Ram Intake Manifold, 7540 (Part No.7540)

Weiand Stealth Ram Intake Manifold, 7540

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$849.99
Weiand Stealth Ram Intake Manifold, 7540.
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Edelbrock – Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373 (Part No.71373)

Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373

from

$779.99
Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373.
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Edelbrock – Edelbrock Street Tunnel Ram Small Block Chevy Intake Manifold, 7110 (Part No.7110)

Edelbrock Street Tunnel Ram Small Block Chevy Intake Manifold, 7110

from

$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.
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Edelbrock – Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011 (Part No.71011)

Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011

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$629.99
Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011.
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Edelbrock – Edelbrock Super Victor 4500 for Raised Port 23 Degree Intake Manifold Small-Block Chevy, 2971 (Part No.2971)

Edelbrock Super Victor 4500 for Raised Port 23 Degree Intake Manifold Small-Block Chevy, 2971

from

$569.99
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.
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Edelbrock – Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011 (Part No.27011)

Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011

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$552.99
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011.
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Edelbrock – Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419 (Part No.5419)

Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419

from

$545.99
Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419.
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Edelbrock – Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418 (Part No.5418)

Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418

from

$545.99
Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418.
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Edelbrock – Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033 (Part No.27033)

Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033

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$479.99
Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033.
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Weiand – Weiand Stealth Intake Manifold, 8150P (Part No.8150P)

Weiand Stealth Intake Manifold, 8150P

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$429.99
Weiand Stealth Intake Manifold, 8150P.
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Edelbrock – Edelbrock Victor Jr. 23 Degree Intake Manifold Small-Block Chevy, 2975 (Part No.2975)

Edelbrock Victor Jr. 23 Degree Intake Manifold Small-Block Chevy, 2975

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$425.99
“Edelbrock part #2975 Victor Jr. intake manifold is excellent for many applications from drag to circle track racing. This intake manifold provides maximum performance for engines with standard port location, iron and aluminum cylinder heads. The low-profile of the #2975 works well in applications with minimal hood clearance and where 1″” or 2″” spacers can be used for performance tuning. When carb spacers are not allowed, the #2999 should be used. The Edelbrock Victor Jr. #2975 is a single-plane, high-rise intake designed for maximum race-winning power at higher engine speeds.”
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Edelbrock – Edelbrock Performer Intake Manifold Small-Block Chevy, 3706 (Part No.3706)

Edelbrock Performer Intake Manifold Small-Block Chevy, 3706

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$414.99
Edelbrock part #3706 Performer EGR intake manifold is designed for street 262-400 c.i.d. Chevy V8’s that have heads with canted center bolt holes, 1987-1995. This intake manifold accepts late-model water neck, air-conditioning, alternator, H.E.I. and have rear water crossovers. For 1987-95 stock aluminum heads use #2101. Will not fit Chevrolet Bowtie or LT1 heads.
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Holley – Holley Strip Dominator Intake Manifold, 300-25 (Part No.300-25)

Holley Strip Dominator Intake Manifold, 300-25

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$399.99
Strip Dominator intake manifold square bore carburetor mounting flange. Single plane with isolated plenum. Isolated water cross-over.
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Edelbrock – Edelbrock Side-Mount Throttle Linkage, 7071 (Part No.7071)

Edelbrock Side-Mount Throttle Linkage, 7071

from

$224.99
Edelbrock No: 7071 Throttle linkage kit for small block Chevy Tunnel Ram Top 7073 with sideways mount carburetors.
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Chrome – 12-Point, 5003 (Part No.5003)

Mr. Gasket Intake Manifold Bolt Set - Chrome - 12-Point, 5003

from

$92.89
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.
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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, FEL-PRO Performance, and Competition Cams, 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 $39.99 and an average cost of $159.32, 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 9 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.
Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630
from $209.99
(1)
Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630
“Huge improvement over stock rods”
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701
from $227.99
(7)
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701
“Removed a Weiand Stealth manifold and replaced with the Edelbrock, while doing a dyno test – increased HP & Torque on a modified 350, very good for st”
Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802
from $39.99
(1)
Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802
“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 FEL-PRO Performance 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 FEL-PRO Performance Performance Engines. With 3 FEL-PRO Performance 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 $31.99, with an average price of $39.82, giving you a range of options to suit your budget. Backed by over 3 customer ratings and an average rating of 4.2 stars, FEL-PRO Performance Performance Engines provide both reliability and excellent performance. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

FAQs for 1985 Pontiac Firebird Performance Engines

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

Out of 95 Performance Engines that fit 1985 Pontiac Firebirds, the following parts are the top sellers:

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

The prices of Performance Engines for the 1985 Pontiac Firebird range from $8.99 up to $1,332.99 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 $330.75. 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:

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 523 reviews by customers, our 1985 Pontiac Firebird Performance Engines have an average customer rating of 4.6 stars. These are the highest-rated categories of Performance Engines for the 1985 Pontiac Firebird and their top-rated products:

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

As of 8/2/26, 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.