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Engine Chev SP383 V8 383ci 435HP 445ft-lbs torque, 9.6:1 Com


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Part No: GM19332532
Engine Chev SP383 V8 383ci 435HP 445ft-lbs torque, 9.6:1 Compression Chevrolet Performance Crate Engine GM 19418657
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Chevrolet Performance Crate Engine SP 383 CID 435 HP

The all new SP383 offers Big Block performance with a Small Block price tag.
Chevrolet Performance starts with the legendary Fast Burn cylinder heads and the 383cid bottom end, to offer an incredible 445 ft. lbs. of torque @ 4600 rpm with a smooth, linear delivery. The combination of a 3.800 steel crank and a stout .509/.528 lift hydraulic roller camshaft produces 435hp @5600 rpm, making the SP383 the benchmark by which all other 383cid small blocks will be measured.

GM's testing was completed using a GM single-plane intake manifold, a 750cfm Demon mechanical secondary carb, and 1-3/4 primary x 33 length headers with a 4 collector. A dual-plane intake manifold can be used, but will affect overall peak performance numbers by 15-20 HP.

Specifications:
Power: 435 HP @ 5600 RPM, 445 ft. lbs. of torque @ 4600 RPM
Displacement: 383 CID
Bore x Stroke: 4.00” x 3.80”
Compression Ratio: 9.6:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps
Crankshaft: 4340 Forged Steel
Connecting Rods: HD Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .509” Intake / .528” exhaust
Cam Duration @ .050”: 222 deg. Intake / 230 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: GM Fast Burn Aluminum Dual Bolt Pattern, 3/8” screw-in rocker studs
Combustion Chamber: 62cc
Valves: .200” Intake/ 1.55” Exhaust
Rocker Arms: Aluminum Roller, 1.5:1 Ratio
Valve Springs: 12625033
Balance: External
Maximum GM Recommended RPM: 6000
Ignition Timing: Base 10 degrees BTDC, 36 degrees total @ 4000RPM
Chevrolet Performance recommended converter stall 2400-2800

Engine Includes:
• Fully GM assembled long block
• Black Aluminum Valve covers
• GM Eliminator Single Plane Vortec Intake Manifold
• Front timing cover
• Cast Iron Long Water Pump
• GM Recommended Torque Converter Stall 2400-2800



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