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Cometic Gasket CG Head Gaskets - Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .030in MLS Cylinder Head Gasket - 4.630in Bore


Part #: C5434-030


$90.53 For each









Product Details
Fits On:
1977 GMC K25 Suburban, 1976 GMC K25 Suburban, 1978 GMC K25, 1977 GMC K25, 1976 GMC K25, 1980 GMC K1500, 1979 GMC K1500, 1976 G... See more

Description:
Cometic's MLS head gasket for Chevy Mark-IV and Gen-V/VI big block V8s uses multiple embossed stainless steel layers with Viton-coated outer surfaces and measures 0.030 in. compressed. No sealants required; compatible with aluminum-to-aluminum and aluminum-to-cast-iron block combinations. Bore size is 4.630 in., and the gasket is also suitable for Brodix Big Duke/Brodie heads.
FAQs
Q: What is a head gasket? Why buy a head gasket?
A: The head gasket is located in between your head and your bottom block to help prevent compression leaks and coolant leaks. When your vehicle overheats, there's a chance the head gasket is blown, or if you're running a high horsepower vehicle or one with a lot of boost, it can warp and blow. Aftermarket head gaskets are made out of copper or metal and protect against high horsepower levels and huge boost levels.

Q: How do you install a head gasket?
A: Head gaskets should be left to the pros since the engine must be removed along with the head, and since machine work must be performed on the block.

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