
Specifications
- Brand
- Cometic Gasket
- Part #
- PRO1005T-4000-040
- UPC
- 191070481377

Cometic Chevy 366 Mark-IV Big Block V8 Top End Gasket Kit-4.000in Bore-.040in MLS Cyl Head Gasket
$378.32
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Cometic Chevy 366 Mark-IV Big Block V8 Top End Gasket Kit. Includes MLS head gaskets for 4.000in bore, .040in thickness, essential for engine rebuilds.
Key Features
- Fits a wide range of 1970-1985 Chevrolet and GMC vehicles with the 366 Mark-IV Big Block V8 engine.
- Includes Multi-Layer Steel (MLS) cylinder head gaskets for robust sealing.
- Cylinder head gaskets are designed for a 4.000-inch bore.
- Cylinder head gaskets have a .040-inch thickness.
- StreetPro kits contain all necessary gaskets and seals for a top-end engine rebuild.
- Gasket materials include MLS, AFM, Aramid Fiber, and Armor Clad for durability.
⚠️ 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 366 Mark-IV Big Block V8, this Cometic StreetPro Top End Gasket Kit is what you'll need to get the job done right. This kit is put together with budget-minded street-rodder in mind, offering all the essential gaskets and seals for a complete rebuild. It's designed to fit a wide range of classic Chevrolet and GMC vehicles from the 1970s and early 1980s, including models like the Chevrolet C10 Pickup, GMC C1500 Suburban, and Chevrolet Impala.
Cometic prioritizes quality gasket materials, and this kit is no exception. It features Multi-Layer Steel (MLS) cylinder head gaskets, which are known for their durability and ability to handle the pressures of a big block V8. The kit also includes other quality materials like AFM, Aramid Fiber, and Armor Clad, ensuring a solid seal across the board. The cylinder head gaskets are specifically made for a 4.000-inch bore and a .040-inch thickness, crucial for proper engine assembly and performance.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- PRO1005T-4000-040
- UPC
- 191070481377
Frequently Asked Questions
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Cometic Chevy 366 Mark-IV Big Block V8 Top End Gasket Kit-4.000in Bore-.040in MLS Cyl Head Gasket

