Auto Barn
Est. 1957
Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .036 inch MLS Head Gasket
Cometic Gasket
Cometic Gasket

Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .036 inch MLS Head Gasket

$101.31

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic Chevy BB Gen IV 396-454 head gasket. Features Multi-Layer Steel construction for reliable sealing on high-output engines.

Key Features

  • Fits a wide range of Chevrolet Big Block Gen IV engines including 396, 402, 427, and 454 applications.
  • Multi-Layer Steel (MLS) construction offers increased strength and durability.
  • Features a 4.320 inch bore and a compressed thickness of 0.036 inches.
  • Outer layers are embossed and coated with Viton, a heat-resistant rubber material.
  • Suitable for sealing aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
  • Requires no additional sealants for installation.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're working on a Chevrolet Big Block Gen IV engine, like the 396, 402, 427, or 454, this Cometic Multi-Layer Steel (MLS) head gasket is built to seal it up right. It's designed for a 4.320-inch bore and has a compressed thickness of 0.036 inches, making it a solid choice for many performance applications.

What makes these MLS gaskets stand out is their construction. They're made from multiple layers of stainless steel, which gives them strength and helps them resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing jobs and works well with both aluminum and cast iron blocks. This design means you don't need any extra sealants, and the gasket can handle the stresses of high-output engines.

This gasket fits a wide range of Chevrolet vehicles from the mid-60s through the early 80s, including models like the Impala, Chevelle, and C10 pickups. It's a well-built component that’s ready to go to work.

Specifications

Brand
Cometic Gasket
Manufacturer Part #
C5816-036
UPC
191070049843

Frequently Asked Questions

Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .036 inch MLS Head Gasket

$101.31