Ford 351 Cleveland 4V 254cc 64cc Cast Iron Bare Cylinder Head while keeping the header bolts

while keeping the header bolts tight

and have a maximum pressure of 14 psi with an externally accessible pressure relief valve

and reduced friction to extend their life

no problem--they are offered with breather holes or without any holes

enhancing performance under high-stress conditions

Ford 351 Cleveland 4V 254cc 64cc Cast Iron Bare Cylinder Head while keeping the header boltsPerformance Cast Iron cylinder heads are designed to be a direct replacement for your worn or cracked heads. These are new castings, modeled off OE castings for factory fit and finish. Some applications feature a thicker deck to solve common warping or cracking issues. Instead of spending the time and money refurbishing your existing heads, use Speedmaster cast iron cylinder heads.