B&M 420 Mega Blower complete package for Big Block Chevy with rectangle port heads. If you’re looking for a complete setup ready to bolt on and get on the water, this is it. The blower was recently rebuilt and upgraded with new Blower Shop billet bearing retainers for added strength and reliability.
Included is the B&M 420 Mega Blower, intake manifold, modified Marine Holley 800 carburetors, drive components, and everything shown in the photos. The carbs have been professionally modified for marine use, making this a great package for a high performance boat application
