Buick GS Performance Engines

Your One-Stop Shop For Trusted Buick GS Performance Engines

If you’re in search of Buick GS Performance Engines aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 41 Performance Engines from top brands with prices ranging from $10.99 to $1,210.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Engines for your Buick GS.

And don’t forget to read customer reviews across all Performance Engines categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Engines have to cost top dollar, and we prove it. Browse our top Buick GS Performance Engines below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential Buick GS Performance Engines

Mr. Gasket – Mr. Gasket Ultra Seal: Competition Screw-In Rocker Arm Studs, 1075 (Part No.1075)

Mr. Gasket Ultra Seal: Competition Screw-In Rocker Arm Studs, 1075

from

$113.99
Mr. Gasket competition screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street and race applications.
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Edelbrock – Edelbrock Water Pump Cartridge for Small-Block Chevy (Race Style), 8827 (Part No.8827)

Edelbrock Water Pump Cartridge for Small-Block Chevy (Race Style), 8827

from

$469.99
Edelbrock Water Pump Cartridge for Small-Block Chevy (Race Style), 8827.
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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.
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Competition Cams – Competition Cams Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit, CL12-602-4 (Part No.CL12-602-4)

Competition Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit, CL12-602-4

from

$397.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
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Mr. Gasket – Mr. Gasket O-Ring Style Chrome Water Neck, 2557 (Part No.2557)

Mr. Gasket O-Ring Style Chrome Water Neck, 2557

from

$33.59
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
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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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Spectre – Spectre Bolt Kit Intake Hex Head, 4652 (Part No.4652)

Spectre Bolt Kit Intake Hex Head, 4652

from

$10.99
Spectre’s Intake Bolt and Washer Set is engineered to provide premium quality hardware for Chevrolet 265-400 and Chrysler 273-440 small block engines. Measuring 3/8 inch-16 by 1 inch, these grade 5 bolts feature a corrosion resistant zinc-plated finish and hex heads to ensure easy installation. This kit includes 12 bolts and washers.
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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.
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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
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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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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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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.
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Competition Cams – Competition Cams Mutha’ Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit, CL12-601-4 (Part No.CL12-601-4)

Competition Cams Mutha' Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit, CL12-601-4

from

$397.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
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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″””
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Competition Cams – Competition Cams Thumpr 227/241 Hydraulic Flat Cam K-Kit, K12-600-4 (Part No.K12-600-4)

Competition Cams Thumpr 227/241 Hydraulic Flat Cam K-Kit, K12-600-4

from

$655.99
SMALL BLOCK CHEVY HYDRAULIC COMPLETE KIT – Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
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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.
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Competition Cams – "Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16" (Part No.942-16)

"Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16"

from

$101.99
Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.
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Competition Cams – Competition Cams Magnum/Drag Race 253/253 Hydraulic Flat Cam, 12-214-4 (Part No.12-214-4)

Competition Cams Magnum/Drag Race 253/253 Hydraulic Flat Cam, 12-214-4

from

$309.99
HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.
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Competition Cams – Competition Cams Xtreme Energy 242/248 Hydraulic Roller Cam, 12-443-8 (Part No.12-443-8)

Competition Cams Xtreme Energy 242/248 Hydraulic Roller Cam, 12-443-8

from

$577.99
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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Competition Cams – Competition Cams Magnum 230/230 Hydraulic Roller Cam, 12-450-8 (Part No.12-450-8)

Competition Cams Magnum 230/230 Hydraulic Roller Cam, 12-450-8

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.
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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.
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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.
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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.
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Competition Cams – Competition Cams Camshaft, Sbc 260 High Energy Hydraulic 1 Ea, 12-206-2 (Part No.12-206-2)

Competition Cams Camshaft, Sbc 260 High Energy Hydraulic 1 Ea, 12-206-2

from

$293.99
HYDRAULIC – High Energy: Vans, pickups, 4WD and towing, in 350c.i., good idle, strong mid-range torque. OR High Energy Marine: Single or dual engine with inboard/outboard drive for ski and economy.
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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.
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Performance Engines Brands You Can Trust For Your Buick GS

5 trusted brands of Performance Engines line our shelves, ready to help keep your Buick GS running smooth. Below are some of the most popular brands and their top Performance Engines offerings:

Popular B & M Performance Engines

B & M products for the Buick GS span several categories. Some of the highest-rated B & M Performance Engines that will fit your Buick GS are:
B & M Tork Master 2400, 20404
from $399.99
(1)
B & M Tork Master 2400, 20404
Performance Torque Converters
B & M Tork Master 3000, 20402
from $584.99
(1)
B & M Tork Master 3000, 20402
Performance Torque Converters

Top Buick GS Performance Engines from Competition Cams

Your Buick GS will be purring again thanks to Competition Cams brand Performance Engines available for online order or in-store pick up. Popular Competition Cams parts include:
Competition Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit, CL12-602-4
from $397.99
(13)
Competition Cams Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit, CL12-602-4
Performance Engine Camshaft and Lifter Kits
"Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16"
from $101.99
(1)
"Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16"
Performance Engine Valve Springs
Competition Cams High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit, CL12-210-2
from $898.99
(1)
Competition Cams High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit, CL12-210-2
Performance Engine Camshaft and Lifter Kits

Most Purchased Buick GS Performance Engines from Mr. Gasket

When you buy the most frequently purchased Mr. Gasket brand Performance Engines, you can be confident it will be the right part for your Buick GS. Here are the Mr. Gasket Performance Engines Advanced Auto customers buy the most:
Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363
from $31.99
(12)
Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363
Performance Engine Coolant Thermostats
Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111
from $481.99
This product is not rated
Edelbrock Performer Small Block Oldsmobile 350 Intake Manifold, 7111
Performance Intake Manifolds
Spectre Bolt Kit Intake Hex Head, 4652
from $10.99
This product is not rated
Spectre Bolt Kit Intake Hex Head, 4652
Performance Intake Manifold Hardware

FAQs for Buick GS Performance Engines

What are the most purchased Performance Engines for the Buick GS?

Out of 41 Performance Engines for the Buick GS, the most popular in our inventory are:
Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363
from $31.99
(12)
Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363
Performance Engine Coolant Thermostats
Spectre Bolt Kit Intake Hex Head, 4652
from $10.99
This product is not rated
Spectre Bolt Kit Intake Hex Head, 4652
Performance Intake Manifold Hardware
Mr. Gasket O-Ring Style Chrome Water Neck, 2557
from $33.59
This product is not rated
Mr. Gasket O-Ring Style Chrome Water Neck, 2557
Performance Water Outlets