BluePrint Engines Chev 632 Stroker Deluxe Dressed With Sniper # PS6320CTFK632 CI ProSeries Stroker Crate Engine Big Block GM Style 10. 3L Fuel Injected Deluxe Dressed w Pulleys Polished HP & Torque: 815 HP 775 FT LBS Compression Ratio: 11. 0: 1 Aluminum Heads Hydraulic Roller Cam Forged Crank Forged Pistons BLOCK: NEW BluePrint Cast Iron Block Manufactured and Machined in the USA! 4 Bolt Main 4. 600" Bore 1 Piece Rear Main Seal Mech fuel pump provision: Yes Tall Deck (Cyl Deck is Approx . 400 taller wider than oem block)