Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCOMETIC GASKETSPART NUMBER: 245-C5334-045
Big-Block Chevy Head Gasket 396/402/427/454/502 Mark V & VI
$10389
Ships on 09/14/2026
Lowest Price GuaranteeChevrolet Big-Block Mark V/VI
- Big-Block Chevy Head Gasket
- 396/402/427/454/502 Mark V & VI
- Bore: 4.630"
- Compressed Thickness: .045"
Cometic Gaskets 245-C5334-045 Features:
GM Gen-V/VI Big Block V8 .045" MLS Cylinder Head Gasket, 4.630" Bore
Cometic Multilayer Steel (MLS) Gaskets are designed to provide the best possible seal for naturally-aspirated, boosted, or nitrous-fed engines. The head gaskets are made from 3-5 layers of spring stainless steel, offering a stronger base material than standard cylinder head gaskets. Viton-coated stainless steel outer layers create a superior seal not available with other steel or copper gaskets. MLS Gaskets reduce bore distortion, resist corrosive substances, and have excellent rebound qualities. Sold individually.
Show More
Features
- Made from stainless spring steel for exceptional corrosion resistance
- Designed to withstand serious cylinder pressures without machining for installation of locking wire
- MLS Cylinder Head Gaskets are coated with .001" thick Viton rubber that's bonded to the outer stainless steel layers Installation Notes
- Not designed for use on engines with O-rings or receiver grooves
- Always refer to the fastener manufacturer to determine accurate torque values
- A surface finish of 50 RA (roughness average) or finer is recommended for proper gasket seal
- Cometic Cylinder Head Gaskets go on dry because they're coated with a sealant (adding another sealer can hinder gasket performance)
Part TypeHead Gasket
Product LineCometic Big Block Chevy Cylinder Head Gaskets
BrandCOMETIC GASKETS
Package Height0.3
Package Width11.8
Package Length23.4
Weight1.0 PG
Part CategoryPerformance Parts
Vendor Part NumberC5334-045
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
