Upgrade your Mopar Chrysler Big Block 440 bottom end with Speedmaster PCE289.1012 billet steel main caps. Engineered as direct OEM 2-bolt replacements, these main caps are crafted from billet steel for superior strength and rigidity compared to factory cast units, helping to maintain consistent main bearing alignment under demanding performance conditions.
Designed as a drop-in replacement for the factory 2-bolt main cap configuration on the Chrysler 440 Big Block, these caps simplify installation while delivering added durability for street, strip, or rebuild applications. Trust Speedmaster's precision machining to provide a reliable foundation for your 440 engine build.