Pro Series Chevy Small Block 4-Bolt Large Journal Main Bolt Kit Camshaft and Gen VI Big Block

and Gen VI Big Block Chevrolet applications requiring a passenger-side GM 10SI alternator mounting solution

weekend racers

Assembled: No

Distributor Type: Pro Billet/Pro Series Pro Billet

K10/K20/K30 (1973–1987)

Pro Series Chevy Small Block 4-Bolt Large Journal Main Bolt Kit Camshaft and Gen VI Big BlockStrengthen the foundation of your engine with the Top Street Performance Pro Series Chevy Small Block 4 Bolt Large Journal Main Bolt Kit. Designed for Chevrolet Gen I Small Block engines equipped with 4 bolt main caps and large journal crankshafts, this SBC main bolt kit provides the strength and clamping force needed to help maintain secure main bearing cap retention in street, performance, marine, and racing applications. Whether you're rebuilding a