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: .051"
- Compressed volume: 11.2 cc
- OK for small block 400 street use. Extra thick to reduce compression.
- 4.200" 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.
Head Gasket Application (JPEG)
Speedy Tip for Proper Head Gasket Seal (GIF)
4.200" bore, .051" thick, 11.2 cc volume
w/ steam holes