Specifications
- Brand
- Cometic Gasket
- Part #
- C5256-070
- UPC
- 191070453091
Cometic Chevrolet 348/409 W-Series Big Block V8 .070in MLS Cylinder Head Gasket - 4.375in Bore
$144.05
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Cometic Chevrolet 348/409 W-Series Big Block V8 .070in MLS head gasket. Fits 1958-1965 Chevrolet models with 4.375in bore.
Key Features
- Fits 1958-1965 Chevrolet Bel Air, Biscayne, Brookwood, C10 Pickup, C20 Pickup, C30 Pickup, Del Ray, El Camino, Impala, K10 Pickup, K20 Pickup, Kingswood, Nomad, Parkwood, Sedan Delivery, Suburban, Truck, and Yeoman.
- Multi-Layer Steel (MLS) construction for increased strength and durability.
- Stainless steel layers offer good rebound and resist corrosion.
- Outer layers are embossed and coated with Viton rubber on both sides.
- Viton coating is heat resistant up to 250°C (482°F).
- Designed for a 4.375-inch bore and a .070-inch thickness.
⚠️ 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
This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket specifically made for Chevrolet 348 and 409 W-Series big block V8 engines. It's designed with a 4.375-inch bore and a .070-inch thickness, making it a solid choice for rebuilding or refreshing the top end of these classic engines. This gasket helps ensure a strong seal between your cylinder head and engine block, which is crucial for proper compression and preventing coolant or oil leaks.
Cometic builds these gaskets using multiple layers of stainless steel. Stainless steel offers increased strength and is resistant to corrosion, while also having good rebound characteristics to maintain sealing pressure. The outer layers are coated with a Viton rubber material on both sides. Viton is known for its heat resistance, handling temperatures up to 482°F (250°C), and it's designed to work well in tough sealing environments and on various surface finishes you might find on an older engine block or head.
This gasket fits a range of classic Chevrolet vehicles from 1958 through 1965, including models like the Bel Air, Impala, and Biscayne. When you're putting your engine back together, a well-made gasket like this is key to a reliable seal.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5256-070
- UPC
- 191070453091
Frequently Asked Questions
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Cometic Chevrolet 348/409 W-Series Big Block V8 .070in MLS Cylinder Head Gasket - 4.375in Bore