Fel-Pro 1047 is a performance head gasket for Big Block Chevy builds that need reliable cylinder sealing under high combustion load. Sized for 396, 402, 427, 454, and 502 engines, it pairs a stainless steel core laminate with sealing beads and a nonstick coating to help control compression and fluid leaks while making teardown cleaner during frequent rebuilds.

Fel-Pro 1047 Technical Specifications:

• 4.540 in. bore diameter and .039 in. compressed thickness support common high-performance Big Block Chevy cylinder head combinations.
• 10.500 cc compressed volume helps builders account for gasket volume when calculating compression ratio.
• Stainless steel core laminate construction gives the gasket a stable foundation for demanding performance and marine engine use.
• Pre-flattened steel wire ring without a lock wire reinforces the bore seal around the combustion chamber.
• Nonstick, anti-friction coating helps fill small surface imperfections and allows easier removal during repeated engine service.
• No-retorque design uses a solid steel core so head bolts do not need a follow-up retorque after installation.
• Embossed Printoseal sealing beads are placed around critical fluid and compression areas to reduce leak paths.
• Engineered for performance applications rated up to 1,000 horsepower and 1,500 to 3,000 PSI combustion pressure.

Includes:

• One head gasket

A strong choice for race, street performance, rebuild, and marine Big Block Chevy engines where frequent teardown, high cylinder pressure, and consistent fluid sealing are part of the build plan.

Designed for Chevy Big Block V8 396, 402, 427, 454, and 502 engines, including Gen V and Gen VI blocks. Mark IV use requires drilling three additional water jacket holes in the block for proper coolant flow and fitment; verify the required modification before installation.