
Specifications
- Brand
- Cometic Gasket
- Part #
- PRO1005T-4560-040
- UPC
- 191070430146

Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.560in Bore-.040in MLS Cylinder Head Gasket
$378.32
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Cometic StreetPro top end gasket kit for Chevy Mark-IV Big Block V8 engines. Includes MLS head gaskets for a 4.560in bore and 0.040in thickness.
Key Features
- Fits a wide range of Chevrolet and GMC Mark-IV Big Block V8 engines.
- Includes all necessary gaskets and seals for a top-end rebuild.
- Features Multi-Layer Steel (MLS) cylinder head gaskets.
- Head gaskets are sized for a 4.560-inch bore.
- Head gaskets have a 0.040-inch thickness.
- Cometic StreetPro kits are designed for budget-minded street-rodder builds.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're rebuilding the top end of your Chevy Mark-IV Big Block V8, this Cometic StreetPro gasket kit is a solid option. It's put together with budget-minded street-rodder builds in mind, giving you all the gaskets and seals you'll need to get the job done right. This kit is designed to fit a wide range of Chevrolet and GMC vehicles from the 1970s and early 1980s, including popular models like the Chevrolet C10 Pickup, Impala, and GMC C15 Pickup.
Cometic prioritizes quality gasket materials for their StreetPro kits. You'll find Multi-Layer Steel (MLS) head gaskets in this kit, which are known for their durability and ability to handle the pressures of a rebuilt engine. The head gaskets are specifically sized for a 4.560-inch bore and a 0.040-inch thickness, ensuring a precise fit for your specific engine build. This kit aims to provide the essential components for a successful top-end rebuild.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- PRO1005T-4560-040
- UPC
- 191070430146
Frequently Asked Questions
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Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.560in Bore-.040in MLS Cylinder Head Gasket

