1971 Buick GS Performance Engines

Keep Your 1971 Buick GS 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 1971 Buick GS looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Timing Sets and Components, Performance Engine Valve Springs, and Performance Engine Camshafts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like Competition Cams and B & M. For example, Competition Cams Performance Engines start at just $33.99 with an average 4.1 star rating. B & M offer similar pricing and quality, backed by strong customer feedback. With over 70 reviews and a solid 4 star average, you can shop with confidence knowing other Buick GS owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1971 Buick GS Performance Engine at Advance Auto Parts is around $365.26, with a range that starts at $8.99 and goes up to $949.99. With 28 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, VALVE SPRINGS, 1.437" SINGLE 1 ST, and VALVE SEALS, TEFLON 3/8" 1 ST start at just $31.99 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 1971 Buick GS in peak condition, inside and out.

Find Your Specific 1971 Buick GS Performance Engines

Looking for the perfect Performance Engine for your 1971 Buick GS? 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 GS. Whether you’re driving a 1971 model or another popular model year like 1970 and 1972, 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 1971 Buick GS Performance Engines

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 – Traveler Converter (Part No.30423)

Traveler Converter

from

$475.99
Torque Converter – Traveler Converter (SUV and Light Truck) for GM 1968 to 1981 TH350, TH375B APPLICATION: GM 1968 to 1981 TH350, TH375B (6) (will not fit TH-350C) Provides slightly higher stall speed than stock to improve pulling power at low speeds. New

Product Features:
  • Ideal For Motor Homes
  • Ideal For Towing Applications
  • Precision Pump Drive Tube
  • Heavy Duty Needle Bearings
  • Furnace Brazed
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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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Competition Cams – Big Mutha’ Thumpr 242/257 Hydraulic Flat Cam (Part No.42-602-5)

Big Mutha' Thumpr 242/257 Hydraulic Flat Cam

from

$341.99
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.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
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Competition Cams – Mutha’ Thumpr 234/249 Hydraulic Flat Cam (Part No.42-601-5)

Mutha' Thumpr 234/249 Hydraulic Flat Cam

from

$341.99
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.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
See More
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Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)

Thumpr 226/241 Hydraulic Flat Cam

from

$341.99
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.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
See More
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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
See More

(12 reviews)
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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

(20 reviews)
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Competition Cams – VALVE SPRINGS, 1.437" SINGLE 1 ST (Part No.942-16)

VALVE SPRINGS, 1.437" SINGLE 1 ST

from

$257.99
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.

Product Features:
  • Seat pressure: 115 lbs. @ 1.700″, Open Pressure: 284 lbs. @ 1.200″
  • O.D.: 1.437″, I.D.: 1.039″
  • Single valve springs with damper
  • Approximately .510″ max lift at recommended installed height
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(1 reviews)
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

from

$33.99
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.

Product Features:
  • Work with .530″ guides and 3/8″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
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(1 reviews)
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Competition Cams – Thumpr 226/241 Hydraulic Flat Cam K-Kit (Part No.K42-600-5)

Thumpr 226/241 Hydraulic Flat Cam K-Kit

from

$742.99
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.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
See More
View Product

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam and Lifter Kit (Part No.CL42-600-5)

Thumpr 226/241 Hydraulic Flat Cam and Lifter Kit

from

$471.99
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.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
See More
View Product

Most Popular Performance Engine Timing Sets and Component for 1971 Buick GSs

Enhance your 1971 Buick GS with this popular Performance Engine Timing Sets and Component we have in stock, for $49.99.
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Competition Cams – ENGINE TIMING SET (Part No.3215)

ENGINE TIMING SET

from

$49.99
ENGINE TIMING SET
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Best-Selling 1971 Buick GS Performance Engine Valve Springs

Upgrade your GS with one of our 3 best-selling Performance Engine Valve Springs, earning an average 4 stars rating across 1 reviews.
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Competition Cams – VALVE SPRINGS, 1.437" SINGLE 1 ST (Part No.942-16)

VALVE SPRINGS, 1.437" SINGLE 1 ST

from

$257.99
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.

Product Features:
  • Seat pressure: 115 lbs. @ 1.700″, Open Pressure: 284 lbs. @ 1.200″
  • O.D.: 1.437″, I.D.: 1.039″
  • Single valve springs with damper
  • Approximately .510″ max lift at recommended installed height
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(1 reviews)
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Competition Cams – Engine Valve Spring Kit (Part No.910-16)

Engine Valve Spring Kit

from

$166.99
Engine Valve Spring Kit
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Competition Cams – Engine Valve Spring (Part No.910-1)

Engine Valve Spring

from

$12.99
Engine Valve Spring
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Top-Quality Performance Engine Camshafts for 1971 Buick GSs

Choose a high-quality OEM or aftermarket Performance Engine Camshaft for Buick GSs and enjoy top-notch performance from $494.99.
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Competition Cams – High Energy 212/212 Hydraulic Flat Cam for Buick 350 (Part No.92-202-4)

High Energy 212/212 Hydraulic Flat Cam for Buick 350

from

$525.99
High Energy 212/212 Hydraulic Flat Cam for Buick 350
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Competition Cams – High Energy 218/218 Hydraulic Flat Cam for Buick 350 (Part No.92-203-4)

High Energy 218/218 Hydraulic Flat Cam for Buick 350

from

$525.99
High Energy 218/218 Hydraulic Flat Cam for Buick 350
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Competition Cams – Thumpr 227/241 Hydraulic Flat Cam for Buick 350 (Part No.92-600-5)

Thumpr 227/241 Hydraulic Flat Cam for Buick 350

from

$519.99
Thumpr 227/241 Hydraulic Flat Cam for Buick 350
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Competition Cams – Big Mutha’ Thumpr 227/241 Hydraulic Flat Cam for Buick 350 (Part No.92-602-5)

Big Mutha' Thumpr 227/241 Hydraulic Flat Cam for Buick 350

from

$508.99
Big Mutha’ Thumpr 227/241 Hydraulic Flat Cam for Buick 350
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Competition Cams – Mutha’ Thumpr 227/241 Hydraulic Flat Cam for Buick 350 (Part No.92-601-5)

Mutha' Thumpr 227/241 Hydraulic Flat Cam for Buick 350

from

$494.99
Mutha’ Thumpr 227/241 Hydraulic Flat Cam for Buick 350
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Top Picks for 1971 Buick GS Performance Engine Coolant Thermostats

Invest in one of our 3 durable Performance Engine Coolant Thermostats for your 1971 Buick, knowing you’re getting trusted brands and expert craftsmanship.
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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

(20 reviews)
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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
See More

(12 reviews)
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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
See More
View Product

Our Top-Rated Performance Engine Valve Stem Seal Sets for 1971 Buick GSs

Make a smart move for your 1971 Buick GS with our Performance Engine Valve Stem Seal Set for $33.99.
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

from

$33.99
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.

Product Features:
  • Work with .530″ guides and 3/8″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
See More

(1 reviews)
View Product

Top-Rated Performance Engine Brands For Your 1971 Buick GS

When it comes to finding the perfect Performance Engine for your 1971 Buick GS, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Performance Engine brands including Competition Cams and B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $33.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1971 Buick GS, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 1971 Buick GS Performance Engines

If you’re looking for a top-quality Performance Engine for your 1971 Buick GS, Advance Auto Parts has exactly what you need with our selection of Competition Cams Performance Engines. We have 2 Competition Cams Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $33.99 and an average cost of $145.99, you’ll find the perfect Performance Engine for your needs and budget. Competition Cams Performance Engines for the 1971 Buick GS come highly rated, with over 2 customer reviews and an impressive average rating of 4.1 stars. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
VALVE SEALS, TEFLON 3/8" 1 ST
from $33.99
(1)
VALVE SEALS, TEFLON 3/8" 1 ST
“As good as OEM.”
VALVE SPRINGS, 1.437" SINGLE 1 ST
from $257.99
(1)
VALVE SPRINGS, 1.437" SINGLE 1 ST
“Great price”

Top-Quality B & M 1971 Buick GS Performance Engines

For those in search of a high-quality Performance Engine for their 1971 Buick GS, Advance Auto Parts offers a great selection of B & M Performance Engines. With 1 B & M Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $373.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.1 stars, B & M Performance Engines provide both reliability and excellent performance. Choosing a B & M Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Tork Master 2400
from $373.99
(1)
Tork Master 2400
“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. ”

FAQs for 1971 Buick GS Performance Engines

What are the best-selling Performance Engines for 1971 Buick GSs?

Out of 28 Performance Engines that fit 1971 Buick GSs, the following parts are the top sellers:

What’s the price range for 1971 Buick GS Performance Engines?

The prices of Performance Engines for the 1971 Buick GS range from $8.99 up to $949.99 for the most premium parts.

What is the average price of a Performance Engine for a 1971 Buick GS?

The average price for Performance Engines for the 1971 Buick GS is $365.26. 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.

What are the cheapest Performance Engines for my 1971 Buick GS?

Does Advance Auto Parts sell Performance Engines for any other 1971 Buick models?

Yes. We stock Performance Engines for 7 other popular 1971 Buick models. Some of the most popular are 1971 LeSabre Performance Engines, 1971 Skylark Performance Engines, 1971 Riviera Performance Engines, 1971 Electra Performance Engines, and 1971 Estate Wagon Performance Engines.

What are the top-rated Performance Engines that fit the 1971 Buick GS?

The one 1971 Buick GS Performance Engine we have in stock is the High Energy 9.677" Long, 5/16" Diameter Pushrod. It costs $8.99.

What types of Performance Engines do you sell for my 1971 Buick GS?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1971 Buick GS:

Can I get help with 1971 Buick GS 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 GS Performance Engines?

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

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