.

For cast iron or aluminum heads. Can be used on 400 Race Engines. Note: Does NOT have steam holes for street use 400 engine. Can be used on aluminum blocks with liners.
 

• Pre-flattened Steel Wire - Steel Core Laminate
• Aluminum Head Brinneling - Minimal
• Gasket Bore - 4.200"
• Nominal Compressed Thickness - .041"
• Compressed Volume - 9.3cc

Fel-Pro® Gaskets are engineered to deliver a perfect seal on every engine. That's why virtually every NASCAR® Winston Cup and NHRA® Winston Drag Racing team - as well as a vast majority of professional engine rebuilders and vehicle service technicians - choose Fel-Pro over every other gasket brand.