1985 Buick Century Performance Engines
Keep Your 1985 Buick Century 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 Century looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Camshafts, Performance Engine Valve Spring Retainer, 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.
Competitive Prices and Extensive Inventory
The average price for a 1985 Buick Century Performance Engine at Advance Auto Parts is around $205.60, with a range that starts at $9.99 and goes up to $815.99. With 14 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Lower Intake Manifold Gasket Set: 3 Piece Set, Performance Cylinder Head Gasket, and Roller Cam Button, Buick V6, .660" 1 Ea start at just $32.99 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 Ignition Products and Performance Radiators. At Advance Auto Parts, we’re here to help you keep your 1985 Buick Century in peak condition, inside and out.
Find Your Specific 1985 Buick Century Performance Engines
Looking for the perfect Performance Engine for your 1985 Buick Century? 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 Buick Century. Whether you’re driving a 1985 model or another popular model year like
1978,
1979,
1980,
1981,
1984,
1986,
1987,
1988, and
1989, 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 Buick Century Performance Engines
Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)
from
$159.99
Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks are black oxide coated. Non-rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.
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Product Features:
- Complete Kit: Includes Retainers And Locks
- Springs Made of Highest Quality Spring Wire
- Springs Precision Wound To Close Tolerances
- Includes Superior Quality Steel Retainers
- Includes 7 deg. Heat-Treated Valve Stem Locks
- Retainers and Locks Black Oxide Coated
- Non-Rotator Style: Dyno Tested and Street Proven
- Great Match to Edelbrock Camshaft Kit
Edelbrock – Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79 (Part No.5792)
from
$149.99
Product Features:
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- Non-Rotator Type
- 1.550 in. Outer Diameter
- .190 Wire Size
- Single Coil Spring Type
- Set of 16
Competition Cams – CAM BUTTON, FIBER TYPE SBC 1 EA (Part No.202)
from
$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.
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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
Competition Cams – Roller Cam Button, Buick V6, .660" 1 Ea (Part No.269)
from
$79.99
COMP Cams Buick V6 Roller Button rides between the front of the timing gear and the back of the timing cover. It can be shimmed to achieve proper endplay.
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Product Features:
- .660″ Length
- Rides between the front of the timing gear and the back of the timing cover
- Can be shimmed to achieve proper endplay
Competition Cams – PUSHROD SET, SBC 3/8 1 ST (Part No.7513-16)
from
$165.99
Magnum Pushrods from COMP Cams offer an affordable solution for your .080″ wall chromemoly pushrod needs. Designed to withstand the stresses of a high performance engine, Magnum Pushrods are head-treated for extended durability and have precision formed, reinforced ends. Magnum Pushrods are black-oxide finished with their part number and length laser etched onto the surface for easy identification.
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Product Features:
- 3/8″ Diameter, 7.800″ Length
- Magnum Pushrods for Small Block Chevy
- One-piece .080″ wall chromemoly steel tubing
- Heat-treated for extended durability and guide plate compatibility
- Precision formed and reinforced pushrod end
Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)
from
$199.99Product Features:
- Case-Hardened Tubing
- Welded Ends
- 5/16 in. Diameter
- Use with or without Hardened Steel Guideplates
FEL-PRO Performance – Lower Intake Manifold Gasket Set: 4 Piece Set (Part No.1357)
from
$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
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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
Mr. Gasket – Intake Gasket (Part No.116)
from
$47.49
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.
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Product Features:
- Manufactured from cellulose/nitrile composition gasket material.
- Provides excellent sealing and durability.
- Can be trimmed if necessary for modified port applications.
- Complete with manifold end seals and distributor gasket.
- For OE replacement, high performance street, drag race and oval track use.
Mr. Gasket – Gskt Intake (Part No.5812)
from
$60.99
Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.
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Product Features:
- Manufactured from cellulose/nitrile composition gasket material
- Provides excellent sealing and durability
- Silicone beading on both sides of each gasket
- Complete with manifold end seals and distributor gasket
- For OE replacement, high performance street, drag race and oval track use
- Creates Tight Leak proof Seal
Edelbrock – Intake Manifold Gasket for 1967-1976 400-455 Buick (Part No.7246)
from
$32.99
Edelbrock part #7246 Intake Gaskets for 1967-1976 400-455 Buick allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology
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Product Features:
- 1.15″x2.38″
- Features Embossed Silicone Bead Around The Intake Ports & Water Openings
- .032″ Thick
- Two Piece Configuration
- End Seals Not Included
Competition Cams – High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6. (Part No.812-1)
from
$13.99
High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.
Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)
from
$89.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.
Product Features:
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Product Features:
- Five layer (graphite core/perforated steel outer layers) composite construction
- Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
- Provides excellent stability, compressibility and high temperature endurance
- Coated with high temperature silicone to ensure sealing of engine fluids
- Will not brinell (indent) aluminum cylinder heads
- For high performance street, drag race and oval track use
- Compatible w/High Octane Fuel
- Compatible With Exotic Fuel
FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)
from
$42.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
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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
FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1010)
from
$51.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
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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
Mr. Gasket – Ultra Seal: Head Gasket (Part No.5799G)
from
$81.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.
Product Features:
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Product Features:
- Five layer (graphite core/perforated steel outer layers) composite construction
- Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out.
- Provides excellent stability, compressibility and high temperature endurance
- Coated with high temperature silicone to ensure sealing of engine fluids
- Will not brinell (indent) aluminum cylinder heads
- For high performance street, drag race and oval track use
- Compatible w/High Octane Fuel
- Compatible With Exotic Fuel
FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1125)
from
$109.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.
Product Features:
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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 Printo seal 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
Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.42-223-4)
from
$328.99
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,
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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.
Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.12-242-2)
from
$251.99
HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.
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Product Features:
- HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.
- 268/280 Advertised Duration, 224/230 Duration @ .050″, .477″/.480″ Lift, 110 Lobe Separation
- Valve spring upgrade required
- Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam (Part No.42-222-4)
from
$350.99
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:
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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.
Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam (Part No.51-225-4)
from
$298.99
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:
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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.
Competition Cams – Magnum 224/224 Hydraulic Flat Cam (Part No.12-212-2)
from
$226.99
HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.
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Product Features:
- HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.
- 280/280 Advertised Duration, 230/230 Duration @ .050″, .480″/.480″ Lift, 110 Lobe Separation
- Valve spring upgrade required
Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam (Part No.12-601-4)
from
$350.99
HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
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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
Competition Cams – 11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring (Part No.712-1)
from
$10.99
11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring
Edelbrock – Performer Series Retainer (Qty 16) (Part No.9724)
from
$106.99
Product Features:
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- 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
Competition Cams – 10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring (Part No.750-1)
from
$10.99
10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring
Popular 1985 Buick Century Performance Engines Categories
Most Popular Performance Engine Camshafts for 1985 Buick Centuries
Enhance your 1985 Buick Century with one of the 5 Performance Engine Camshafts we have in stock, starting at just $428.99.
Competition Cams – High Energy 218/212 Hydraulic Roller Cam for Buick Grand National 231 V6 (Part No.69-400-8)
from
$815.99
High Energy 218/212 Hydraulic Roller Cam for Buick Grand National 231 V6
Competition Cams – High Energy 212/212 Hydraulic Roller Cam for Buick Grand National 231 V6 (Part No.69-300-8)
from
$815.99
High Energy 212/212 Hydraulic Roller Cam for Buick Grand National 231 V6
Competition Cams – High Energy 206/206 Hydraulic Roller Cam for Buick Grand National 231 V6 (Part No.69-200-8)
from
$815.99
High Energy 206/206 Hydraulic Roller Cam for Buick Grand National 231 V6
Competition Cams – High Energy 218/218 Hydraulic Flat Cam for Buick 181-252 Even Fire V6 (Part No.69-246-4)
from
$479.99
High Energy 218/218 Hydraulic Flat Cam for Buick 181-252 Even Fire V6
Competition Cams – High Energy 212/212 Hydraulic Flat Ca, for Buick Grand National 231 V6 (Part No.69-248-4)
from
$428.99
High Energy 212/212 Hydraulic Flat Ca, for Buick Grand National 231 V6
Best-Selling 1985 Buick Century Performance Engine Valve Spring Retainer
Upgrade your Century with our best-selling Performance Engine Valve Spring Retainer.
Competition Cams – 7 Steel Retainer for SBC, Chevrolet/Buick V6 with 1.250" OD Spring (Part No.742-1)
from
$10.99
7 Steel Retainer for SBC, Chevrolet/Buick V6 with 1.250" OD Spring
Top-Quality Performance Engine Cylinder Head Gaskets for 1985 Buick Centuries
Choose a high-quality OEM or aftermarket Performance Engine Cylinder Head Gasket for Buick Centuries and enjoy top-notch performance from $61.99.
FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1000)
from
$61.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.
Product Features:
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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.
Our Top Pick for a 1985 Buick Century Performance Engine Push Rod
Invest in a
durable Performance Engine Push Rod for your 1985 Buick, knowing you’re getting trusted brands and expert craftsmanship.
Competition Cams – High Energy 8.684" Long, 5/16" Diameter Pushrod Set of 12 (Part No.7869-12)
from
$31.99
High Energy 8.684" Long, 5/16" Diameter Pushrod Set of 12
Our Performance Engine Intake Manifold Gaskets for 1985 Buick Centuries
Make a smart move for your 1985 Buick Century with our Performance Engine Intake Manifold Gasket for $32.99.
FEL-PRO Performance – Lower Intake Manifold Gasket Set: 3 Piece Set (Part No.1200)
from
$32.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
Product Features:
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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
FAQs for 1985 Buick Century Performance Engines
What are the best-selling Performance Engines for 1985 Buick Centuries?
Out of 14 Performance Engines that fit 1985 Buick Centuries, the following parts are the top sellers:
- Lower Intake Manifold Gasket Set: 3 Piece Set (19781715) – $32.99
- Performance Cylinder Head Gasket (19782376) – $61.99
- Roller Cam Button, Buick V6, .660" 1 Ea (10321877) – $79.99
What’s the price range for 1985 Buick Century Performance Engines?
The prices of Performance Engines for the 1985 Buick Century range from $9.99 up to $815.99 for the most premium parts.
What is the average price of a Performance Engine for a 1985 Buick Century?
The average price for Performance Engines for the 1985 Buick Century is $205.60. 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 Century model years?
What are the cheapest Performance Engines for my 1985 Buick Century?
The cheapest 1985 Buick Century Performance Engines we carry are:
- Engine Valve Spring (50286657) – $9.99
- 7 Steel Retainer for SBC, Chevrolet/Buick V6 with 1.250" OD Spring (50289502) – $10.99
- High Energy Hydraulic Flat Lifter for Buick 181-252/350-455 and Cadillac 472-500 (50286568) – $13.99
- Performance Series Solid Lifter for Cadillac, Chevrolet, Oldsmobile and Pontiac (50287860) – $15.99
- High Energy 8.684" Long, 5/16" Diameter Pushrod Set of 12 (50289699) – $31.99
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 LeSabre Performance Engines, 1985 Skylark Performance Engines, 1985 Riviera Performance Engines, and 1985 Electra Performance Engines.
What types of Performance Engines do you sell for my 1985 Buick Century?
As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1985 Buick Century:
Can I get help with 1985 Buick Century 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 Century Performance Engines?
Advance Auto Parts keeps returns simple. For new Buick Century Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.