Shelby 351W Bare Block

The Shelby Alloy Windsor block is 45 percent lighter, yet stronger than the factory cast iron version. It retains original factory engine mounting bosses and bell housing bolt pattern, making it a bolt-in replacement for cast iron Windsor blocks. The Shelby 351 block is fully CNC machined. The Shelby block offers these premium performance features: Expanded Water Jackets Also available as a solid block Thick 0.750-inch deck delivers the foundation needed for maximum head gasket sealing and retention. Accepts Canted Valve Heads Shelby's 351 Alloy block delivers superior bottom end stability at high rpm. Shelby 351 Windsor Aluminum Block Technical Features: Block Material A356,T6 aluminum Blocks is CNC machined Deck Height 9.5-inch Deck Thickness 0.750-inch Cylinder bore range Wet - 4.030 or 4.120 Solid - 4.120-inch Maximum Stroke 4.250-inch Displacements up to 461 cubic inches Cylinder sleeve Centrifugally cast dry sleeves Cylinder wall Siamese with dry liners