SP383 EFI Deluxe 450 HP

Chevrolet Performance SKU: 19433045
Sale price


Regular price $15,339.83
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).
TECH SPECS 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 Crankshaft (P/N 12489436): Forged steel Connecting Rods (P/N 19355754): Heavy-duty forged steel Pistons (P/N 12499103): Hypereutectic aluminum 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 Balanced: External Flexplate (P/N 14088765): 12.750

INSTALLATION NOTES • 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

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