Buick GS 400 Performance and Racing Products

Essential Buick GS 400 Performance and Racing Products

Motive Gear – Differential Mini Spool (Part No.MS12C)

Differential Mini Spool

from

$108.99


Product Features:
  • MINI SPOOL GM12 BOLT CAR & TRUCK STRANGE # 088430
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Edelbrock – Valve Cover Gasket Set for Buick (Part No.7546)

Valve Cover Gasket Set for Buick

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

Product Features:
  • 0.1875 in. Thickness
  • Core-Reinforced-Composite Material
  • For Buick 400-455
  • Set of 2
  • Made In The USA
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Motive Gear – Performance Differential Ring and Pinion (Part No.BP882355)

Performance Differential Ring and Pinion

from

$303.99


Product Features:
  • BOP R/P 8.2″ 10BL 3.55
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

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$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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Accel – Supercoil (Part No.140001)

Supercoil

from

$114.99
Engineered for faster rise time, longer spark duration and increased performance. Unique design with premium grade wire, special low resistance, high turns ratio windings. Produces higher spark energy with breakerless electronic ignition systems. For points application the supplied 0.85 ohm ballast resistor must be used in conjunction with the vehicle original ballast resistor, if so equipped. Oversized molded case with integral cooling fins and high capacity oil filled construction provide high thermal conductivity ensuring cool operation and long life. Extra tall tan Alkyd tower and integral voltage dam eliminate “flashover” to primary terminals. Comes complete with mounting hardware and 0.85 ohm ballast resistor. Effective up to 6,500 RPM.

Product Features:
  • Oil Filled For Better Cooling
  • Optimized Low Resistance
  • Silicon Magnetic Steel E-Core
  • Higher Energy/Voltage Outputs
  • Quicker Starts
  • Improved Idle Quality
  • Resists Shock And Vibration
  • Resists Corrosion
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.E-1650)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$83.99
K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable and engineered to last for the entire lifespan of your vehicle. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!

Product Features:
  • REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
  • RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
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Hays – Power Train (Part No.85-110)

Power Train

from

$749.99
Matched assembly for maximum reliability. An excellent choice for high performance street applications.

Product Features:
  • Built As Matched Assembly
  • Exceptional Performance
  • Exceptional Durability
  • Long Term Dependability
  • Designed for Street And Street Strip Applications
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MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15894)

Street Series Crossmember-Back Performance Exhaust System

from

$1000.00
The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15894 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.75in. Polished Weld-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15894 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
  • Dyno-proven performance
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Mr. Gasket – Alternator Bracket (Part No.9850)

Alternator Bracket

from

$25.99
Hold your alternator securely in place with Mr. Gasket chrome alternator bracket. Chrome plated heavy gauge steel for long lasting good looks. Must be used with #9852.

Product Features:
  • Chrome Plated Steel
  • F-Style
  • Heavy Gauge Steel Construction
  • Fits Small Block Chevy 265-400 CID
  • Must Be Used With Part 9852
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Mallory – Distributor Wiring Harness (Part No.29349)

Distributor Wiring Harness

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$33.99


Product Features:
  • Service Part
  • Makes Connections Quick And Easy
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FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1125)

Performance Cylinder Head Gasket

from

$109.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

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
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Flowmaster Inc. – Header 409S – 4-1 One piece – 3.00 in. Ball and Socket Flange Outlet – Pair (Part No.814116)

Header 409S - 4-1 One piece - 3.00 in. Ball and Socket Flange Outlet - Pair

from

$1159.99
Flowmaster’s Scavenger Series Elite headers feature heavy duty 3/8 in. laser cut flanges, 16 gauge stainless steel primary pipes and gasket free ball flange exhaust connectors. Designed to compliment installations of modern GM LS-1 and LS-6 engines into popular Buick, Chevy, Oldsmobile and Pontiac muscle cars, these full length headers provide an exact fit and increased performance. Please note these headers are not emissions legal and are designed for off-road use only.

Product Features:
  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Durable Ceramic Coating
  • Gasket Free Ball Style Collectors
  • Made in the USA
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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
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Earls Performance Product – Brake Bleeder Screws (Part No.280029ERL)

Brake Bleeder Screws

from

$46.99
Brake Bleeder Screws

Edelbrock – Performer Intake Manifold for Buick 400-455 V8, Non-EGR, Satin Finish (Part No.2146)

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

from

$568.99


Product Features:
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 deg. Firing Order
  • Patented Runner Design Ensures Broad Torque Curve
  • Excellent Throttle Response and Mid-Range Power
  • 50-State Street Legal if Correct Carburetor Used
  • Will Fit Cold Air Induction Hoods
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Flowmaster Inc. – Prebent Tailpipes – 2.50 in. Rear Exit – Pair (Part No.15802)

Prebent Tailpipes - 2.50 in. Rear Exit - Pair

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$232.99
Prebent pipe kits. Flowmaster’s 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster.
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Mallory – Mallory Kit: Unil Conv: Delco: V8 (Part No.501)

Mallory Kit: Unil Conv: Delco: V8

from

$149.99
Put an end to high maintenance point ignition systems by installing a proven Mallory Unilite ignition conversion kit. Features at a glance, improves performance and fuel efficiency, easy to install with simple hand tools, reduced maintenance and is available for all popular 12-volt negative ground domestic cars and trucks.

Product Features:
  • Easy Installation
  • Improved Fuel Economy
  • Reduced Maintenance
  • Accurate Timing
  • Improved Performance
  • Provides A Simple Conversion
  • No Moving Parts To Wear Out
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FEL-PRO Performance – Exhaust Manifold Gasket Set (Part No.1479)

Exhaust Manifold Gasket Set

from

$34.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Performance exhaust header gasket consisting of a high-density fiber facing material attached to both sides of a perforated steel core.
  • Resists blowout and burnout from high-temperature exhaust and is far stronger than basic paper gaskets.
  • Anti-stick coating permits motion without damaging the gasket and makes it easier to remove the gasket for future engine service.
  • Slotted bolt holes allow for easier header installation.
  • Not intended for use in emission controlled vehicles.
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Accel – Adj:Vac Adv GM V8 Point Dist (Part No.31034)

Adj:Vac Adv GM V8 Point Dist

from

$59.99
This unit permits a seamless wide range of adjustment to both amount and rate of ignition advance. This unit helps increase horsepower and throttle response. It provides maximum spark advance while preventing detonation or “pinging”. This kit includes an allen wrench for easy adjustment along with instructions.

Product Features:
  • Adjustable Vacuum Advance
  • Increases Horsepower And Throttle Response
  • Includes Allen Wrench For Adjustments
  • Instantly Increase Horsepower
  • Maximum Possible Spark Advance
  • Not Legal For Sale/Use In CA
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Helping You Find the Right Performance and Racing Products for Your Buick GS 400

You love your GS 400. So we’ve made it easier than ever to help you find Buick GS 400 Performance and Racing Products in our online catalog. Our inventory holds 60 aftermarket and OEM Performance and Racing Products for your Buick GS 400, ranging from $7.99 to $1,159.99.

We offer parts from 16 brands trusted to make quality Performance and Racing Products for your Buick GS 400. Before you buy, take some time to read through customer reviews. We currently have 330 reviews of Buick GS 400 Performance and Racing Products from previous customers. Some of the top rated parts include Street Carburetor: 600 CFM, Electric Choke, 4 Barrel, Square Bore, Single Inlet, Shiny with 4.7 stars and Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration with 4.9 stars.

Find your GS 400 Performance and Racing Products here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Buick GS 400 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Performance and Racing Products Brands for Your Buick GS 400

Our inventory holds Performance and Racing Products for your Buick GS 400 from 16 trusted brands. You’ll find OEM and aftermarket parts from brands like Accel, Mr. Gasket, and Flowmaster Inc., all of which can keep that Buick happy.
We have B & M parts available for your Buick GS 400 in categories like Performance Shifters. Some of the top-rated B & M parts in these categories are:
Automatic Shifter - Megashifter - Universal
from $527.99
(1)
Automatic Shifter – Megashifter – Universal
Performance Shifters

FAQs for Buick GS 400 Performance and Racing Products

What are the most purchased Performance and Racing Products for the Buick GS 400?

Out of 60 Performance and Racing Products for the Buick GS 400, the most popular in our inventory are:
High Performance 180 Degree Thermostat for Increased Flow
from $29.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats
High Performance Thermostat - 160 Degree Brass & Copper
from $29.49
(12)
High Performance Thermostat – 160 Degree Brass & Copper
Performance Engine Coolant Thermostats

What are the top-rated Buick GS 400 Performance and Racing Products?

Top-rated Performance and Racing Products for your Buick GS 400 based on customer reviews/ratings are:
Street Carburetor: 600 CFM, Electric Choke, 4 Barrel, Square Bore, Single Inlet, Shiny
from $499.99
(45)
Street Carburetor: 600 CFM, Electric Choke, 4 Barrel, Square Bore, Single Inlet, Shiny
“very easy to install…replaced older carb this one is fresh and runs smooth … needed to do minor ajustment .. but nothing anyone couldn’t do …”
Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
from $83.99
(14)
Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
“Great product as usual from K&N!!”