BluePrint GM engines give you brute, honest horsepower that'll leave others in your rear view mirror. Produced from hand-picked, seasoned four-bolt main blocks and precision built to exacting specifications.
Power: 325 HP @ 5000 RPM, 385 ft. lbs. of torque @ 3800 RPM
Displacement: 383 CID
Bore x Stroke: 4.040” x 3.75”
Compression Ratio: 9.5:1
Recommended Fuel: 91 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps with passenger side oil dip stick hole, brass freeze plugs.
Crankshaft: Cast Steel, polished, stress relieved and shot peened with chamfered oil oils
Connecting Rods: Heavy Beam with 150,000 psi bolts
Pistons: Hypereutectic Aluminum
Camshaft: Steel Flat Tappet
Cam Lift: .480” Intake / .480” Exhaust
Cam Duration @ .050”: 210 deg. Intake / 220 deg. Exhaust
Lobe Separation: 110 Degree
Cylinder Heads: Cast Iron Vortec.
Combustion Chamber: 64cc
Valves: 2.02” Intake/ 1.60” Exhaust
Rocker Arms: Stamped Steel, 1.5:1 Ratio
Valve Springs: 1.25” Diameter
• Fully assembled long block
• Stamped Steel Chrome Valve Covers
• Melling High Volume Oil pump, pick-up and oil pan
• Front timing cover with 8” timing pointer
• Oil Filter Adapter
• Dyno Test Sheet
Notes:This engine was designed to run with all stock components such as fuel system, stall converter, fuel pump etc from the 1996-2000 trucks and SUV's with a 5.7L engine. BluePrint Engines does recommend that you upgrade your computer during installation.
BluePrint limited 30 month / 50,000 mile parts & labor warranty. Click Here to view or download warranty form.