BluePrint Engines GM Big Block Bare Block Deck Bore Seal Ductile Cast Main Caps

The BluePrint Engines GM Big Block Compatible Bare Block with ductile cast main caps is a new cast iron engine block. It is a foundation for a Big Block Chevy (BBC) build. It suits street, strip and marine builds that need more displacement and a strong, accurately machined block. It is sold as a bare block (no internal components), so you can build the rotating assembly and top end to your own specification.

Key Features:

• Cast iron construction: the block is made from EN-GJL-250 iron.
• Ductile cast main caps: the main bearing caps are ductile cast.
• Priority main oiling: the oiling system sends oil to the main bearings first.
• Machined for build-ready use: line-honed main bearing bores, precision lifter bores, and roller-lifter provisions.
• Gen IV style 2-piece rear main seal: uses an OEM-style 2-piece seal.
• OEM-style components: the block uses an OEM-style oil pump, oil filter, oil pan, camshaft position and cam retaining plate. This simplifies parts selection.
• SIAM: the block is machined with the SIAM design.

The line comes in several deck height and bore combinations, so you can match the block to your target displacement and engine package. BluePrint Engines designs and builds performance engines and engine components. A BluePrint block gives your big-inch Chevy build a durable, performance-minded starting point.