Fel-Pro P1003 S/B Chevy 265-400 Steel Ring Head Gasket 4.166 Inch Bore

These Fel-Pro gaskets work with both cast iron and aluminum heads. Pre-flattened steel wire ring gaskets have the strength of steel wire sealing with minimum brinelling of aluminum heads. Pre-flattened copper wire ring gaskets will not brinell aluminum heads. They offer superior heat dissipation. Multi-layer steel gaskets offer current leading-edge technology and provide a long-term, leakproof seal called Perma Torque MLS.

• Gaskets are sold each
• Pre-flattened steel wire
• Nominal compression thickness: .041"
• Compressed volume: 9.1 cc
• 4.166" bore gaskets can be used on 400 race engines with up to 4.155" max bore with minimal chamfer
• When using aluminum heads, we recommend gaskets with soft copper wire rings (such as 344-1010). This ensures that the aluminum head is not "scarred" by the combustion seal. Shim style 344-1094 will also work well with aluminum heads.

Item Details

4.166" bore, .041" thick, 9.1 cc volume

Head Gasket Application (JPG)

Speedy Tip for Proper Head Gasket Seal (JPG)