1981 Buick Estate Wagon Performance Engines

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1981 Buick Estate Wagon 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 1981 Buick Estate Wagon looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifolds, Performance Engine Camshafts, and Performance Engine Coolant Thermostats. 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 B & M. For example, B & M Performance Engines start at just $399.99 with an average 4.3 star rating. With over 16 reviews and a solid 4.8 star average, you can shop with confidence knowing other Buick Estate Wagon owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 Buick Estate Wagon Performance Engine at Advance Auto Parts is around $395.55, with a range that starts at $20.99 and goes up to $921.99. With 31 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like "Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16", Competition Cams Valve Seals, 503-16, and Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111 start at just $20.99 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 Distributors and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1981 Buick Estate Wagon in peak condition, inside and out.

Essential 1981 Buick Estate Wagon Performance Engines

Edelbrock – Edelbrock RPM Air-Gap Oldsmobile 455 Intake Manifold, 7551 (Part No.7551)

Edelbrock RPM Air-Gap Oldsmobile 455 Intake Manifold, 7551

from

$644.99
Edelbrock RPM Air-Gap Oldsmobile 455 Intake Manifold, 7551.
See More

Edelbrock – Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111 (Part No.7111)

Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111

from

$481.99
Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111.
See More

Edelbrock – Edelbrock Performer Olds 350 Intake Manifold for 307-330-350-403 Small-Block Oldsmobile, 2711 (Part No.2711)

Edelbrock Performer Olds 350 Intake Manifold for 307-330-350-403 Small-Block Oldsmobile, 2711

from

$497.99
Edelbrock Performer Olds 350 Intake Manifold for 307-330-350-403 Small-Block Oldsmobile, 2711.
See More

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. ”
See More

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

B & M Torque Converter, Nitrous Holeshot 3600, 20482

from

$799.99
B&M Nitrous HoleShot 3600 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 (Not TH350C) transmissions is an excellent choice for vehicles with 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. Nitrous Holeshot converters feature furnace brazed impeller and turbine, new precision steel alloy pump drive tube, new heavy duty needle bearings between the stator and impeller (not a thrust washer) and needle bearings between the stator and turbine. Other features include dual pattern 10.75 and 11.50-inch bolt circle, a new turbine hub, new springs and rollers in the stator and anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower that a nitrous plate system delivers. 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. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications.
See More

B & M – B & M Tork Master 3000, 20402 (Part No.20402)

B & M Tork Master 3000, 20402

from

$584.99
The Tork Master 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C) transmissions. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, 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. 10.75-inch bolt circle
See More

B & M – B & M Holeshot 3000, 20413 (Part No.20413)

B & M Holeshot 3000, 20413

from

$921.99
This Holeshot 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C). 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. Has both 10.75 and 11.50-inch bolt circles.
See More

B & M – B & M Tork Master 2400, 20404 (Part No.20404)

B & M Tork Master 2400, 20404

from

$399.99
The Tork Master 2400 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, 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. 10.75-inch bolt circle
See More

Competition Cams – Competition Cams Cam & Lifter Kit, Oldsmobile V8 280 Magnum Hydraulic 1 Ea, CL42-231-4 (Part No.CL42-231-4)

Competition Cams Cam & Lifter Kit, Oldsmobile V8 280 Magnum Hydraulic 1 Ea, CL42-231-4

from

$397.99
Competition Cams Cam & Lifter Kit, Oldsmobile V8 280 Magnum Hydraulic 1 Ea, CL42-231-4.
See More

Competition Cams – Competition Cams Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit, CL51-600-5 (Part No.CL51-600-5)

Competition Cams Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit, CL51-600-5

from

$451.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.
See More

Competition Cams – Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit, CL42-222-4 (Part No.CL42-222-4)

Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit, CL42-222-4

from

$397.99
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.
See More

Competition Cams – Competition Cams Magnum 252/252 Hydraulic Roller Cam and Lifter Kit, CL12-470-8 (Part No.CL12-470-8)

Competition Cams Magnum 252/252 Hydraulic Roller Cam and Lifter Kit, CL12-470-8

from

$1210.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Cam And Lifter Kit, Sbc 294 Xtreme Energy Hydraulic 1 Ea, CL12-254-3 (Part No.CL12-254-3)

Competition Cams Cam And Lifter Kit, Sbc 294 Xtreme Energy Hydraulic 1 Ea, CL12-254-3

from

$386.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Pro Street/bracket, needs good intake, headers, gear and 3300+ stall.
See More

Competition Cams – Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit, K42-222-4 (Part No.K42-222-4)

Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit, K42-222-4

from

$597.99
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.
See More

Edelbrock – Edelbrock Performer-Plus Camshaft Kit, 7112 (Part No.7112)

Edelbrock Performer-Plus Camshaft Kit, 7112

from

$461.99
“Edelbrock part No: 7112 Performer RPM Camshaft is designed for small-block Oldsmobile 350-403 V-8 applications. This Edelbrock cam kit produced 397 HP & 400 ft-lbs. of torque when used with No: 7111 intake and stock iron cylinder heads on a 350 engine. The camshaft works well with high-performance’s street applications, Performer RPM cams provide power from 1500 to 6500 rpm. This hydraulic lifter camshaft is dyno-matched to Performer RPM manifolds for high-rpm horsepower while still maintaining acceptable low-end torque. With 10 to 12 inches of manifold vacuum at idle, Performer RPM cams have more lift and duration than most street camshafts. Hydraulic flat tappet lifters are included with each Performer RPM camshaft. Camshaft Specifications: – Duration at .050 Intake: 224 degrees – Duration at .050 Exhaust: 234 degrees – Lift at Valve Intake: .496″” – Lift at Valve Exhaust: .520″” – Lobe Separation: 112 Degrees – Intake Centerline: 107 Degrees – Idle Vacuum at 1000 RPM’s: 12″””
See More

Competition Cams – Competition Cams Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit, CL12-600-4 (Part No.CL12-600-4)

Competition Cams Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit, CL12-600-4

from

$397.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
See More

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.
See More

Competition Cams – "Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16" (Part No.502-16)

"Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16"

from

$20.99
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.
See More

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.
See More

Competition Cams – Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam, 42-226-4 (Part No.42-226-4)

Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam, 42-226-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam, 42-222-4 (Part No.42-222-4)

Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam, 42-222-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam, 42-231-4 (Part No.42-231-4)

Competition Cams Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam, 42-231-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Magnum/Marine 244/244 Hydraulic Flat Cam, 42-236-4 (Part No.42-236-4)

Competition Cams Magnum/Marine 244/244 Hydraulic Flat Cam, 42-236-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Magnum 244/244 Hydraulic Roller Cam, 12-460-8 (Part No.12-460-8)

Competition Cams Magnum 244/244 Hydraulic Roller Cam, 12-460-8

from

$577.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Magnum 230/230 Hydraulic Flat Cam for Chevrolet Small Block, 12-212-2 (Part No.12-212-2)

Competition Cams Magnum 230/230 Hydraulic Flat Cam for Chevrolet Small Block, 12-212-2

from

$226.99
HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.
See More

Competition Cams – Competition Cams Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam, 51-602-5 (Part No.51-602-5)

Competition Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam, 51-602-5

from

$325.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.
See More

Competition Cams – Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam for Chevrolet Small Block, 12-254-3 (Part No.12-254-3)

Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam for Chevrolet Small Block, 12-254-3

from

$297.99
HYDRAULIC – Xtreme Energy: Pro Street/bracket, needs good intake, headers, gear and 3300+ stall.
See More

Competition Cams – Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam, 42-224-4 (Part No.42-224-4)

Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam, 42-224-4

from

$309.99
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,
See More

Most Popular Performance Intake Manifold for 1981 Buick Estate Wagons

Enhance your 1981 Buick Estate Wagon with this popular Performance Intake Manifold we have in stock, for $481.99.

Edelbrock – Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111 (Part No.7111)

Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111

from

$481.99
Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111.
See More

Best-Selling 1981 Buick Estate Wagon Performance Engine Camshafts

Upgrade your Estate Wagon with one of our 15 best-selling Performance Engine Camshafts.

Competition Cams – Competition Cams Big Mutha’ Thumpr 242/257 Hydraulic Flat Cam, 42-602-5 (Part No.42-602-5)

Competition Cams Big Mutha' Thumpr 242/257 Hydraulic Flat Cam, 42-602-5

from

$325.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.
See More

Competition Cams – Competition Cams Mutha’ Thumpr 234/249 Hydraulic Flat Cam, 42-601-5 (Part No.42-601-5)

Competition Cams Mutha' Thumpr 234/249 Hydraulic Flat Cam, 42-601-5

from

$325.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.
See More

Competition Cams – Competition Cams Thumpr 226/241 Hydraulic Flat Cam, 42-600-5 (Part No.42-600-5)

Competition Cams Thumpr 226/241 Hydraulic Flat Cam, 42-600-5

from

$325.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.
See More

Competition Cams – Competition Cams Magnum/Marine 244/244 Hydraulic Flat Cam, 42-236-4 (Part No.42-236-4)

Competition Cams Magnum/Marine 244/244 Hydraulic Flat Cam, 42-236-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam, 42-224-4 (Part No.42-224-4)

Competition Cams Xtreme Energy 230/236 Hydraulic Flat Cam, 42-224-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam, 42-231-4 (Part No.42-231-4)

Competition Cams Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam, 42-231-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam, 42-226-4 (Part No.42-226-4)

Competition Cams Xtreme Energy 250/256 Hydraulic Flat Cam, 42-226-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam, 42-222-4 (Part No.42-222-4)

Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam, 42-222-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Magnum 253/253 Hydraulic Flat Cam, 42-237-4 (Part No.42-237-4)

Competition Cams Magnum 253/253 Hydraulic Flat Cam, 42-237-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams High Energy 206/206 Hydraulic Flat Cam, 42-227-4 (Part No.42-227-4)

Competition Cams High Energy 206/206 Hydraulic Flat Cam, 42-227-4

from

$309.99
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.
See More

Competition Cams – Competition Cams Xtreme Energy 224/230 Hydraulic Flat Cam, 42-223-4 (Part No.42-223-4)

Competition Cams Xtreme Energy 224/230 Hydraulic Flat Cam, 42-223-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Magnum 224/224 Hydraulic Flat Cam, 42-308-4 (Part No.42-308-4)

Competition Cams Magnum 224/224 Hydraulic Flat Cam, 42-308-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

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

Competition Cams Xtreme Energy 240/246 Hydraulic Flat Cam, 42-225-4

from

$309.99
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,
See More

Competition Cams – Competition Cams Xtreme Energy 206/212 Hydraulic Flat, 42-220-4 (Part No.42-220-4)

Competition Cams Xtreme Energy 206/212 Hydraulic Flat, 42-220-4

from

$309.99
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,
See More

Competition Cams – Competition Cams High Energy 212/212 Hydraulic Flat Cam, 42-228-4 (Part No.42-228-4)

Competition Cams High Energy 212/212 Hydraulic Flat Cam, 42-228-4

from

$309.99
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.
See More

Top-Quality Performance Engine Coolant Thermostats for 1981 Buick Estate Wagons

Choose a high-quality OEM or aftermarket Performance Engine Coolant Thermostat for Buick Estate Wagons and enjoy top-notch performance from $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.
See More

Top Picks for 1981 Buick Estate Wagon Performance Engine Valve Stem Seal Sets

Invest in one of our 2 durable Performance Engine Valve Stem Seal Sets for your 1981 Buick, knowing you’re getting trusted brands and expert craftsmanship.

Competition Cams – "Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16" (Part No.502-16)

"Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16"

from

$20.99
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.
See More

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.
See More

Performance Camshaft and Lifter Kits for 1981 Buick Estate Wagons

Make a smart move for your 1981 Buick Estate Wagon with products all priced from $397.99 to $597.99.

Competition Cams – Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit, K42-222-4 (Part No.K42-222-4)

Competition Cams Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit, K42-222-4

from

$597.99
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.
See More

Competition Cams – Competition Cams Magnum 224/224 Hydraulic Flat Cam and Lifter Kit, CL42-308-4 (Part No.CL42-308-4)

Competition Cams Magnum 224/224 Hydraulic Flat Cam and Lifter Kit, CL42-308-4

from

$397.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Top-Rated Performance Engine Brands For Your 1981 Buick Estate Wagon

When it comes to finding the perfect Performance Engine for your 1981 Buick Estate Wagon, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Performance Engine brands including B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $399.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1981 Buick Estate Wagon, providing peace of mind with parts that meet or exceed OEM standards.

Popular B & M 1981 Buick Estate Wagon Performance Engines

If you’re looking for a top-quality Performance Engine for your 1981 Buick Estate Wagon, Advance Auto Parts has exactly what you need with our selection of B & M Performance Engines. We have 2 B & M Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $399.99 and an average cost of $492.49, you’ll find the perfect Performance Engine for your needs and budget. B & M Performance Engines for the 1981 Buick Estate Wagon come highly rated, with over 2 customer reviews and an impressive average rating of 4.3 stars. Choosing a B & M Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
B & M Tork Master 2400, 20404
from $399.99
(1)
B & M Tork Master 2400, 20404
“The B&M 2400 stall converter was a great choice for my application. It works well on the street and track, increased performance by leaps and bounds. ”
B & M Tork Master 3000, 20402
from $584.99
(1)
B & M Tork Master 3000, 20402
“good parts and very strong”

FAQs for 1981 Buick Estate Wagon Performance Engines

What are the best-selling Performance Engines for 1981 Buick Estate Wagons?

Out of 31 Performance Engines that fit 1981 Buick Estate Wagons, the following parts are the top sellers:

What’s the price range for 1981 Buick Estate Wagon Performance Engines?

The prices of Performance Engines for the 1981 Buick Estate Wagon range from $20.99 up to $921.99 for the most premium parts.

What is the average price of a Performance Engine for a 1981 Buick Estate Wagon?

The average price for Performance Engines for the 1981 Buick Estate Wagon is $395.55. 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 Estate Wagon model years?

Yes, we carry Performance Engines for 9 model years of Buick Estate Wagons between 1970 and 1979. The following model years are the most popular for Performance Engine purchases: 1979, 1978, 1977, 1976, 1975, 1974, 1973, 1972, and 1971.

What are the cheapest Performance Engines for my 1981 Buick Estate Wagon?

Does Advance Auto Parts sell Performance Engines for any other 1981 Buick models?

Yes. We stock Performance Engines for 5 other popular 1981 Buick models. Some of the most popular are 1981 Regal Performance Engines, 1981 Century Performance Engines, 1981 LeSabre Performance Engines, 1981 Skylark Performance Engines, and 1981 Riviera Performance Engines.

What are the top-rated Performance Engines that fit the 1981 Buick Estate Wagon?

The one 1981 Buick Estate Wagon Performance Engine we have in stock is the "Competition Cams Valve Seals, Umbrella 11/32"" 1 St, 502-16". It costs $20.99.

What types of Performance Engines do you sell for my 1981 Buick Estate Wagon?

As of 8/2/26, these are some of the most in-demand types of Performance Engines for a 1981 Buick Estate Wagon:

Can I get help with 1981 Buick Estate Wagon 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 Estate Wagon Performance Engines?

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