1985 Buick Skylark Performance Engines

Keep Your 1985 Buick Skylark 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 Buick Skylark 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 Rocker Arms, and Performance Intake Manifolds. 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.

Competitive Prices and Extensive Inventory

The average price for a 1985 Buick Skylark Performance Engine at Advance Auto Parts is around $233.35, with a range that starts at $10.99 and goes up to $899.99. With 17 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, Lower Intake Manifold Gasket Set: 2 Piece Set, and ENGINE ROCKER ARM start at just $19.29 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 Ignition Products and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1985 Buick Skylark in peak condition, inside and out.

Essential 1985 Buick Skylark Performance Engines

Competition Cams – High Energy 206/206 Hydraulic Flat Cam K-Kit (Part No.K12-205-2)

High Energy 206/206 Hydraulic Flat Cam K-Kit

from

$1201.99
Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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Competition Cams – Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-234-2)

Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit

from

$305.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Strong torque thru low end and mid-range, good idle.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Xtreme Energy: Strong torque thru low end and mid-range, good idle.
  • 256/268 Advertised Duration, 212/218 Duration @ .050″, .447″/.454″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 4 Piece Set (Part No.1357)

Lower Intake Manifold Gasket Set: 4 Piece Set

from

$44.99
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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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 2 Piece Set (Part No.1270)

Lower Intake Manifold Gasket Set: 2 Piece Set

from

$34.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro performance intake manifold gaskets have been tested with virtually all aftermarket cylinder head and intake manifold combinations.
  • No exhaust crossover openings or blocking shields
  • Embossed steel core laminate w/coating
  • Not intended for use in emission controlled vehicles.
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Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.51-223-4)

Xtreme Energy 224/230 Hydraulic Flat Cam

from

$298.99
HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle. 2000+ stall.

Product Features:
  • HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle. 2000+ stall.
  • 268/280 Advertised Duration, 224/230 Duration @ .050″, .477″/.480″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam (Part No.12-601-4)

Mutha' Thumpr 235/249 Hydraulic Flat Cam

from

$350.99
HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:
  • HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
  • 287/305 Advertised Duration, 235/249 Duration @ .050″, .489″/.476″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
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Edelbrock – Valve Cover Gasket Set for Buick (Part No.7546)

Valve Cover Gasket Set for Buick

from

$37.99
The Edelbrock valve cover gaskets #7546?provide excellent sealing integrity and conformability for easy installation. The multi-layer construction has two highly compressible, high rubber content, fiber-reinforced outside layers which are chemically bonde

Product Features:
  • 0.1875 in. Thickness
  • Core-Reinforced-Composite Material
  • For Buick 400-455
  • Set of 2
  • Made In The USA
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1640)

Engine Valve Cover Gasket Set

from

$22.99
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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Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

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.

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

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.49
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 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
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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2908)

Engine Crankshaft Seal Kit

from

$45.99
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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Mr. Gasket – Rear Main Seal Gasket (Part No.1960)

Rear Main Seal Gasket

from

$27.99
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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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2912)

Engine Crankshaft Seal Kit

from

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

Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Chevrolet Small Block w/ 3/8" Stud

from

$433.99
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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Competition Cams – Magnum Roller 1.6 Ratio Rocker Arm Set (Part No.1431-16)

Magnum Roller 1.6 Ratio Rocker Arm Set

from

$350.99
These Magnum Roller Rocker Arms for Ford V8 289-351W (Rail Type) 1968-89 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.6 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their roller tip reduces friction, while stiff design and superior ratio accuracy yield more effective valve lift. With a 15 to 30 horsepower increase over other rocker arms, Magnum Roller Rockers are perfect for performance applications with less than 350 lbs. open spring pressure. Don’t accept inferior products or cheap knock-offs, look for the COMP Cams logo stamped into the underside of every Magnum Rocker.

Product Features:
  • Ultimate street rocker designed for serious performance enthusiasts
  • Constructed from 8620 chromemoly steel, a superior material that will not flex and assures maximum lift
  • Roller tip reduces friction while stiff design and superior ratio accuracy yields more effective valve lift
  • 15 to 30 horsepower increase over stock rocker arms
  • Use in any applications with less than 350 lbs. open spring pressure
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Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Ultra Seal: Screw-In Rocker Arm Studs

from

$75.99
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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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9724)

Performer Series Retainer (Qty 16)

from

$106.99
Product Features:
  • Use W/ Valve Springs Part #5822, 5882, 5896, 5872, 5867, 5812, 5857
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9721)

Performer Series Retainer (Qty 16)

from

$100.99
Valve spring retainers for use OE cast iron heads. Superior quality heat-treated steel. Machined for strength with black oxide finish. Finish ensures rust and corrosion protection.

Product Features:
  • Valve Spring Retainers for Use OE Cast Iron Heads
  • Superior Quality Heat-Treated Steel
  • Machined for Strength with Black Oxide Finish
  • Finish Ensures Rust and Corrosion Protection
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B & M – Tork Master 2400 (Part No.20404)

Tork Master 2400

from

$373.99
Torque Converter – Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost performance torque converter. The Tork Master is an excellent all-around performance street converter. The best value priced street converters available, Tork Master converters come with a new precision pump drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. New alloy steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required. Due to torque converter core availability, the actual converter size may vary but performance functionality will be as advertised.

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
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B & M – Holeshot 3600 (Part No.20425)

Holeshot 3600

from

$949.99
HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power and torque. The high stall converter allows the engine to launch the car at higher rpm where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability and more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! 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. Furnace brazed impeller. New precision steel alloy pump drive tube. New heavy duty needle bearing between stator and impeller (not a thrust washer). Needle bearing between stator and turbine. Furnace brazed turbine. Dual pattern drive lugs on some GM Holeshots. New turbine hub. New springs and rollers in stator.

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
  • Dual Pattern Drive Lugs
  • New Turbine Hub
  • New Springs/Rollers In Stator
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B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Torque Converter, Nitrous Holeshot 3600

from

$749.99
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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B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Performance Torque Converter for GM TH400, 350, & 375 Transmissions

from

$329.99
Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
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B & M – Holeshot 3000 (Part No.20413)

Holeshot 3000

from

$899.99
HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

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

Performer Small-Block Chevy 2.8L Intake Manifold

from

$379.99


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
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Weiand – Team G; Intake Manifold (Part No.7531)

Team G; Intake Manifold

from

$449.99


Product Features:
  • Designed For Today’s Larger Cubic Inch Big Block
  • Perfect For Hard Core Drag Racers
  • Permanent Mold Casting Process
  • For Lighter And More Consistent Castings
  • Dyno Proven To Make 17hp More Than Competitors
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Edelbrock – forward-Mount Throttle Linkage for S/B Chevy #7110 Street Tunnel Ram Manifold (Part No.7097)

forward-Mount Throttle Linkage for S/B Chevy #7110 Street Tunnel Ram Manifold

from

$57.99
Throttle linkage kit for street tunnel and victor ram. Use for forward mounted carburetors only.

Product Features:
  • Throttle Linkage Kit for Street Tunnel/Victor Ram
  • Use for Forward Mounted Carburetors Only
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Edelbrock – Performer Intake Manifold for Buick 400-455 V8, Non-EGR, Satin Finish (Part No.2146)

Performer Intake Manifold for Buick 400-455 V8, Non-EGR, Satin Finish

from

$568.99


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
  • Will Fit Cold Air Induction Hoods
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Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy (Part No.2701)

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

from

$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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Most Popular Performance Engine Valve Cover Gasket Set for 1985 Buick Skylarks

Enhance your 1985 Buick Skylark with this popular Performance Engine Valve Cover Gasket Set we have in stock, for $24.49.

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

Engine Valve Cover Gasket Set

from

$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.
See More

Best-Selling 1985 Buick Skylark Performance Engine Rocker Arms

Upgrade your Skylark with one of our 2 best-selling Performance Engine Rocker Arms.

Competition Cams – ENGINE ROCKER ARM (Part No.1216-12)

ENGINE ROCKER ARM

from

$132.99
ENGINE ROCKER ARM

Competition Cams – ENGINE ROCKER ARM (Part No.1216-1)

ENGINE ROCKER ARM

from

$19.29
ENGINE ROCKER ARM

Top-Quality Performance Intake Manifolds for 1985 Buick Skylarks

Choose a high-quality OEM or aftermarket Performance Intake Manifold for Buick Skylarks and enjoy top-notch performance from $216.99.

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

Performer Small-Block Chevy 2.8L Intake Manifold

from

$379.99


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
See More

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

Performer Top Small-Block Chevy 4V Intake Manifold

from

$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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Our Top Pick for a 1985 Buick Skylark Performance Engine Intake Manifold Gasket

Invest in a durable Performance Engine Intake Manifold Gasket for your 1985 Buick, knowing you’re getting trusted brands and expert craftsmanship.

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 2 Piece Set (Part No.1270)

Lower Intake Manifold Gasket Set: 2 Piece Set

from

$34.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro performance intake manifold gaskets have been tested with virtually all aftermarket cylinder head and intake manifold combinations.
  • No exhaust crossover openings or blocking shields
  • Embossed steel core laminate w/coating
  • Not intended for use in emission controlled vehicles.
See More

Top-Rated Performance Engine Coolant Thermostats for 1985 Buick Skylarks

Make a smart move for your 1985 Buick Skylark with products all priced from $29.49 to $31.99.

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

High Performance 180 Degree Thermostat for Increased Flow

from

$29.99
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.

Product Features:
  • 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
See More

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

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.49
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 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
See More

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

High Performance Thermostat

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.

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
See More

FAQs for 1985 Buick Skylark Performance Engines

What are the best-selling Performance Engines for 1985 Buick Skylarks?

Out of 17 Performance Engines that fit 1985 Buick Skylarks, the following parts are the top sellers:

What’s the price range for 1985 Buick Skylark Performance Engines?

The prices of Performance Engines for the 1985 Buick Skylark range from $10.99 up to $899.99 for the most premium parts.

What is the average price of a Performance Engine for a 1985 Buick Skylark?

The average price for Performance Engines for the 1985 Buick Skylark is $233.35. 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 Buick Skylark model years?

Yes, we carry Performance Engines for 26 model years of Buick Skylarks between 1964 and 1995. The following model years are the most popular for Performance Engine purchases: 1984, 1983, 1982, 1981, 1980, 1979, 1978, 1977, and 1976.

What are the cheapest Performance Engines for my 1985 Buick Skylark?

The cheapest 1985 Buick Skylark Performance Engines we carry are:

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

Yes. We stock Performance Engines for 5 other popular 1985 Buick models. Some of the most popular are 1985 Regal Performance Engines, 1985 Century Performance Engines, 1985 LeSabre Performance Engines, 1985 Riviera Performance Engines, and 1985 Electra Performance Engines.

What are the top-rated Performance Engines that fit the 1985 Buick Skylark?

The one 1985 Buick Skylark Performance Engine we have in stock is the 10 Degree Superlock Steel Retainer for 1.437"-1.500" OD Valve Spring. It costs $10.99.

What types of Performance Engines do you sell for my 1985 Buick Skylark?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1985 Buick Skylark:

Can I get help with 1985 Buick Skylark Performance Engine orders?

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

What is your return policy for Buick Skylark Performance Engines?

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