CLASSIC SMALL-BLOCK STROKER WITH MODERN EFI
It’s hard to beat the classic 383 “stroker” for Small-Block torque, but Chevrolet Performance engineers found a way. They matched it with the driving convenience of electronic fuel injection!
Rated at 450 horsepower and 436 lb.-ft. of torque, the SP383 EFI also features a high-performance roller camshaft and lightweight aluminum, Fast Burn-style cylinder heads with modern valvetrain technology that includes beehive-type valve springs and aluminum roller rocker arms.
The SP383 EFI incorporates a port-style injection system, with the injectors plumbed in a carburetor-style intake manifold, and the throttle body mounted in the conventional position of the carburetor, which allows for a traditional air cleaner and a classic appearance. It’s a vintage look that offers contemporary drivability and strong performance.
Our SP383 EFI Deluxe kit includes the distributor, damper and flexplate, ready to install. The SP383 EFI Turn-Key kit is also available (P/N 19419199).
Part Number: 19418640
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 383
Bore x Stroke (in): 4.005 x 3.800
Block (P/N 88962516):
Cast iron with 4-bolt main caps
Connecting Rods (P/N 19355754): Heavy-duty forged steel
Pistons (P/N 12499103):
Camshaft Type (P/N 19210723):
Steel hydraulic roller
Valve Lift (in): .474 intake / .510 exhaust
Camshaft Duration (@.050 in): 208 intake / 221° exhaust
Cylinder Heads (P/N 19300955):
Fast Burn aluminum; 62cc chambers
Valve Size (in): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.72:1 (nominal)
Rocker Arms (P/N 19210724):
Aluminum roller style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36° Total at 4,000 rpm
Maximum Recommended rpm: 6,000
• Crate engine kit includes pre-programmed, self-learning control system
• Come with a 12.750" externally balanced, 153-tooth automatic transmission flexplate. An externally balanced flywheel is required for manual transmission applications.
• Not intended for marine applications
California Proposition 65 Warning