Billet 4130 4-bolt Main Caps

Eagle billet 4130 main caps offer superb strength at an affordable price. Improves performance and reliability by eliminating main cap walk and reducing main bearing bore distortion. Fits Chevrolet 2-bolt main cap register without machining. Includes drill bit alignment mandrel. Bolts not included. Block must be line-honed after main cap installation.

C4107S                     107.82

Rear Main Seal Adapter

Allows the use of early style (mark IV, 2 piece rear seal) cranks in late model (mark V & VI, 1 piece rear seal) blocks. Must use late model oil pan.

EAG 500                       123.08