My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Cometic C5769-140 MLS Cylinder Head Gasket Pontiac Bore - 400/428/455 V8 4.200

(Pontiac GTO 1968-73, Firebird 1968-79, Grand Prix 1968-77, Grand Am 1973-75, Bonneville 1968-78, LeMans 1968-77, Catalina 1968-78 + 12 more models)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5769-140
9 reviews
Sale Price

$232.11

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic C5769-140 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Pontiac 400, 428, and 455 cubic inch V8 engines. This gasket features a 4.200-inch bore diameter and .140-inch compressed thickness, making it ideal for street performance and racing applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability
  • .140-inch (3.56mm) compressed thickness for precise compression control
  • 4.200-inch bore diameter optimized for Pontiac big block V8 engines
  • Multiple embossed layers of stainless steel with elastomeric coatings
  • Resists combustion chamber pressure and extreme temperatures
  • Accommodates engine movement and thermal expansion
  • Reusable in most applications when properly installed

Cometic MLS gaskets are the preferred choice for engine builders seeking maximum reliability in high-performance applications. The advanced multi-layer design distributes clamp load evenly while maintaining superior conformability to head and block surfaces. Compatible with Pontiac 400, 428, and 455 V8 engines commonly found in Firebird, Trans Am, GTO, Grand Prix, and other classic Pontiac models.

Products specifications

Fits

Pontiac GTO 1968-73, Firebird 1968-79, Grand Prix 1968-77, Grand Am 1973-75, Bonneville 1968-78, LeMans 1968-77, Catalina 1968-78, Tempest 1968-70, Parisienne 1968-74, 1976, Grandville 1971-75, Executive 1968-70, Grand LeMans 1975-77 + 7 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

Had part in stock. Ordering was easy.

Shopping was quick and easy.

Fast and easy

Very good

easy peasy so far

Easy to find and order

quick service especially with all that is going on in the country

Very easy...

Thankyou. Quick and easy. Lowest price than anywhere else. Let's see how the shipping is.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy