
Specifications
- Brand
- Cometic Gasket
- Part #
- PRO1005T-4630-051
- UPC
- 191070481421

Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.630in Bore-.051in MLS Cylinder Head Gasket
$378.32
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Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit for 4.630in bore. Includes MLS cylinder head gaskets for a reliable rebuild.
Key Features
- Fits a wide range of Chevrolet and GMC vehicles with Mark-IV Big Block V8 engines.
- Includes all necessary gaskets and seals for a top-end engine rebuild.
- Features Multi-Layer Steel (MLS) cylinder head gaskets.
- Cylinder head gaskets are .051 inches thick and designed for a 4.630-inch bore.
- StreetPro kits use quality gasket materials like MLS, AFM, Aramid Fiber, and Armor Clad.
⚠️ 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 Chevrolet Mark-IV Big Block V8, this Cometic StreetPro gasket kit is a solid option. It's put together with budget-minded street rodders 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 range of vehicles, including popular models like the 1970-1975 Chevrolet Impala and 1973-1974 Chevrolet C10 Pickup.
Cometic prioritizes quality materials for their StreetPro kits. You'll find a variety of gasket types included, such as Multi-Layer Steel (MLS), AFM, Aramid Fiber, and Armor Clad. The cylinder head gaskets themselves are MLS, measuring .051 inches thick with a 4.630-inch bore, which are key specs for ensuring a proper seal on your Big Block V8. These materials are chosen to hold up well in a street-driven application, giving you confidence in your engine rebuild.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- PRO1005T-4630-051
- UPC
- 191070481421
Frequently Asked Questions
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Cometic Chevy Mark-IV Big Block V8 Top End Gasket Kit-4.630in Bore-.051in MLS Cylinder Head Gasket

