1968 Buick GS 400 Performance Engines

Essential 1968 Buick GS 400 Performance Engines

Mr. Gasket – Water Neck (Part No.2557)

Water Neck

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$27.49
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.

Product Features:
  • Complete with o-rings and mounting bolts
  • Features an o-ring style seal to prevent water leaks
  • Chrome plated
  • 1/2″ NPT port can be used for various coolant temp related sensors or switches
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Edelbrock – Valve Cover Gasket Set for Buick (Part No.7546)

Valve Cover Gasket Set for Buick

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$35.99
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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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1125)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

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$106.99
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 Printoseal sealing beads at all vital areas to eliminate leak paths
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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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

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$26.99
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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Edelbrock – Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79 (Part No.5792)

Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79

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$141.99
Product Features:
  • Non-Rotator Type
  • 1.550 in. Outer Diameter
  • .190 Wire Size
  • Single Coil Spring Type
  • Set of 16
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1968 Buick GS 400 Performance Engines

Maybe you’re in the middle of a full rebuild of that 1968 Buick GS 400. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 5 different Performance Engines in our inventory ranging from $26.99 to $141.99. That means you can find the exact parts or products you need to keep that 1968 Buick GS 400 running smoothly.

Performance Engines are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 1968 Buick GS 400. Mr. Gasket, Edelbrock, and FEL-PRO Performance are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Performance Engines for your 1968 Buick GS 400, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Performance Engines to keep your 1968 Buick GS 400 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Performance Engines Brands To Make Your 1968 Buick GS 400 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1968 Buick GS 400 demands trusted brand parts and products to keep it running. Many trusted brands of Performance Engines make up Advance Auto Parts’ inventory, and all are ready to help make your GS 400 the best it can be. Be sure to browse some of our top Performance Engines brands and parts.

Popular Mr. Gasket Performance Engines

We carry Mr. Gasket parts in our stock across Performance Engine Coolant Thermostats categories, plus more. For a 1968 Buick GS 400, our most popular Mr. Gasket Performance Engines include:
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats

FAQs for 1968 Buick GS 400 Performance Engines

What are the most purchased Performance Engines for the 1968 Buick GS 400?

Out of 5 Performance Engines for the 1968 Buick GS 400, the most popular in our inventory are:
Water Neck
from $27.49
This product is not rated
Water Neck
Performance Water Outlets
Valve Cover Gasket Set for Buick
from $35.99
This product is not rated
Valve Cover Gasket Set for Buick
Performance Engine Valve Cover Gasket Sets
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $106.99
This product is not rated
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
Performance Engine Cylinder Head Gaskets