BluePrint Engines 383CI Stroker Crate Engine for 1996-2000 GM Vortec Truck/SUV No ECU Tuning Required, Dyno Tested Longblock +47 Rear Wheel Horsepower Increase over Stock + 55 Rear Wheel ft/lbs Torque Increase over Stock Aluminum Heads, Hydraulic Roller Cam, Cast Steel Crank, and Hypereutectic Pistons Compression Ratio: 10:1 BLOCK: NEW BluePrint Cast Iron Block Manufactured and Machined in the USA! 4-Bolt Main 1-Piece Rear Main Seal Mech fuel pump provision: Yes Passenger Side Dipstick Drilled and tapped for clutch linkage
ROTATING ASSEMBLY: New BluePrint Steel crankshaft 3.750″ Stroke OEM type 5.700″ connecting rods w/ 150,000 psi bolts Hypereutectic pistons Externally Balanced Front/ Externally Balanced Rear
CYLINDER HEADS: BluePrint Aluminum Cylinder Heads – H8002K 64cc chamber 2.02″ intake/1.60″ exhaust valves 195cc intake/75cc exhaust runners
CAM SPECS: Cam Type: Roller .477 Intake .471 Exhaust 202 Intake / 212 Exhaust duration @ .050 – 115 degree lobe separation
IGNITION TIMING: Computer Controlled
WARRANTY: 30 month / 50,000 mile
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