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 C5433-045 MLS Cylinder Head Gasket Bore Chevy Big Block - 4.570 045

(Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990, Chevelle 1965-73, Blazer 1973-74 + 96 more models)

Part of: Cometic MLS Cylinder Head Gasket Chevy Big Block Bore

Other options in this family: Cometic C5331-080 Cometic C5816-045 Cometic C5332-040 Cometic C5760-040 Cometic C5434-066

Manufacturer

Picture for manufacturer Cometic

Part Number

C5433-045
4 reviews
Sale Price

$104.62

Estimated ship date Thursday, November 26

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 C5433-045 is a multi-layer steel (MLS) cylinder head gasket engineered for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines. This precision gasket features a .045" compressed thickness and 4.570" bore diameter, making it ideal for performance builds and engine rebuilds requiring exact specifications.

Key Features:

  • Multi-layer steel construction provides superior sealing and durability under high compression and temperature conditions
  • 4.570" bore diameter accommodates standard and modified big block configurations
  • .045" compressed thickness allows for precise compression ratio tuning
  • Undersized water ports designed for aftermarket cylinder heads, allowing custom machining and port matching for optimal cooling system customization
  • Compatible with Chevrolet Mark-IV, GM Gen-V, and Gen-VI big block V8 platforms

Cometic's MLS gaskets utilize multiple layers of stainless steel with advanced coating technology to maximize sealing performance while accommodating engine movement and thermal expansion. The undersized water port design gives engine builders the flexibility to machine ports to exact specifications for their specific aftermarket head application.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1966-76, C10 1975-80, El Camino 1966-75, Monte Carlo 1970-75, Nova 1969-72 + 90 more models

Prop 65

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

Material

Multi-layer Steel

First time buyer and couldn't be happier with the service and follow through! Great Job Autoplicity!!!

Great prices and items were shipped very quickly. I will definitely buy from Autoplicity again.

simple

very fast shipping..will order again!!!

Share icon
Return Policy
Returns are easy at THMotorsports

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