Speedmaster 1-286-002-03 Fits Chevy SBC 350 B-4.165 M-350 DH-9.025 4-Bolt Billet Main Bare Iron Engine Block

If 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. The Speedmaster H1 is the perfect starting point for a powerful and reliable engine build suited for the street or race track. Precision pre-machining is the perfect starting point for a powerful and reliable engine eliminating time and expense of blueprinting a stock block or ''semi-finished'' factory casting. Best of all can be used with standard off the shelf small block components.Speedmaster H1 Chevy SBC bare blocks feature:  Cast from premium high-strength Class 32B ironStandard deck height allows the use of off the shelf partsUses standard small block Camshaft, Timing Chain, Oil pump, Oil filter, Motor Mounts.

• Cast from premium high-strength Class 32B iron
• Standard deck height allows the use of off the shelf parts