What is the compressed thickness of this head gasket?

This Cometic head gasket has a compressed operating thickness of 0.036 inches. This measurement is important for ensuring proper valve-to-piston clearance and compression ratios in your engine build.

Do I need to use any sealant with this head gasket?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require additional sealants. The Viton coating on the outer layers helps create a robust seal.

What is the bore size of this gasket?

This gasket features a bore size of 4.270 inches. It is also designed with a 4.500 inch bore center, which is important for alignment on specific engine blocks like Dart and Brodix.

Specifications

Brand: Cometic Gasket
Part #: C5215-066
UPC: 191070091934

Cometic GM Dart/Brodix Small Block V8 .066in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket

Name: Cometic GM Dart/Brodix Small Block V8 .066in / 4.270in Bore / 4.500in Bore Center MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-dart-brodix-small-block-v8-066in-4-270in-bore-4-500in--t14-522089
Price: 141.79 USD
Availability: BackOrder

$141.79

On Backorder

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

Cometic GM Dart/Brodix Small Block V8 MLS head gasket. Features Viton coating and 0.066in thickness for high output engines.

Key Features

Fits a wide range of GM Dart/Brodix Small Block V8 engines.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with heat-resistant Viton rubber.
Compressed operating thickness is 0.036 inches.
Bore size is 4.270 inches.
Designed for high-output engines and requires no additional sealants.

⚠️ 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

Will it fit your car?

About this part

Product Details

If you're working on a GM Dart or Brodix small block V8 engine, this Cometic Multi-Layer Steel (MLS) head gasket is built to handle the demands of high-output applications. It's designed to provide a solid seal between your cylinder heads and engine block, crucial for maintaining compression and preventing leaks in performance builds. This gasket is suitable for use with both aluminum and cast iron blocks, offering flexibility for various engine configurations.

Cometic constructs these head gaskets with multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes. The center layer is stainless steel and can be varied in thickness to meet specific engine requirements; this particular gasket has a compressed thickness of 0.036 inches and a bore size of 4.270 inches. Because they are made of multiple steel layers, these gaskets are strong and can rebound, helping them maintain a seal even under significant stress. They are designed to work without additional sealants, simplifying the installation process.

This gasket fits a wide range of vehicles, including many Chevrolet and GMC trucks and cars from the 1980s and early 90s, as well as models like the Avanti II and Checker Marathon. Always refer to the manufacturer's installation instructions for proper torque sequences and procedures when installing head gaskets.