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Est. 1957
Cometic Street Pro GM Gen-6 L21/29 454 Big Block 4.375in Bore .040in Top End Gasket Kit
Cometic Gasket
Cometic Gasket

Cometic Street Pro GM Gen-6 L21/29 454 Big Block 4.375in Bore .040in Top End Gasket Kit

$265.50

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Cometic Street Pro GM Gen-6 L21/29 454 Big Block .040in top end gasket kit. Features quality gasket materials for your rebuild.

Key Features

  • This kit includes all necessary gaskets and seals for a GM Gen-6 L21/29 454 Big Block V8 top-end rebuild.
  • Features a 4.375-inch bore and .040-inch thickness for precise fitment.
  • Gasket materials include MLS, AFM, Aramid Fiber, and Armor Clad for durability.
  • Designed for budget-minded street-rodder rebuilds.
  • Fits a wide range of Chevrolet and GMC C/K/G/P series trucks and vans from 1996-2000.

⚠️ 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

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Product Details

This Cometic Street Pro gasket kit gives you all the essential gaskets and seals needed for a GM Gen-6 L21/29 454 Big Block V8 engine rebuild. It's designed for the budget-conscious street-rodder who wants a complete top-end kit without compromising on material quality. This kit fits a range of Chevrolet and GMC trucks and vans from the mid-to-late 90s, including models like the C2500 Suburban and Express 3500.

Inside this kit, you'll find gaskets made from a combination of quality materials such as Multi-Layer Steel (MLS), AFM, Aramid Fiber, and Armor Clad. These materials are chosen to ensure a solid seal for your engine's top end. The kit is specifically for a 4.375-inch bore with a .040-inch thickness, making it a precise fit for the specified Gen-6 Big Block engines.

Specifications

Brand
Cometic Gasket
Manufacturer Part #
PRO1046T
UPC
191070558734

Frequently Asked Questions

Cometic Street Pro GM Gen-6 L21/29 454 Big Block 4.375in Bore .040in Top End Gasket Kit

$265.50