Chevy SBC 400 B-4.125 M-400 DH-9.025 4-Bolt Billet Main Bare Iron Engine Block Ideal for vehicles with a

Ideal for vehicles with a long water pump and Type 2 power steering pump

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

it provides efficient high water flow and reliable performance

Couple this Hi-Ram intake with the high flowing LS3 style cylinder heads has outstanding potential for naturally aspirated and forced induction applications

improving belt retention and reducing the risk of slippage

Chevy SBC 400 B-4.125 M-400 DH-9.025 4-Bolt Billet Main Bare Iron Engine Block Ideal for vehicles with aIf your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block. Design from the ground up based upon your favourite bowtie block with the ability to handle naturally aspirated, supercharged, turbocharged and nitrous applications.