SP383 EFI Turn-Key Crate Engine

$13,433.33 $10,578.75

  • 450hp @ 5,800 rpm/436 lb.-ft. @ 4,800 rpm
  • Forged Steel Crank in a Four-bolt Main Block
  • Fast Burn Aluminum Cylinder Heads
  • Port-style Injection System

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

SKU: 19420597 Categories: , Tag:

SP383 EFI Turn Key Crate Engine

P/N 19420597

450 hp @ 5,800 rpm / 436 lb.-ft. @ 4,800 rpm

SP383 EFI Tech Specs:
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 10185071): 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



SP383 EFI Turn-Key Crate Engine

19420597 Chevrolet Motor

Big Torque and EFI Convenience in a Comprehensive Kit

Chevrolet Performance’s SP383 EFI Turn Key kit offers the strong pull of the proven 383 “stroker” combination and the contemporary convenience of electronic fuel injection, delivered with most of the engine accessories required to get the engine running in your project vehicle!

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 rated at 450 horsepower and a stout 436 lb.-ft. of torque.

Our comprehensive Turn-Key assembly is delivered with the distributor and damper installed. The throttle body, starter, fuel pump, air conditioning pump, alternator, single-belt front-end accessory drive system and more are also included in the kit. The SP383 EFI Deluxe, including only the distributor and damper, is also available (P/N 19418640).

Click here to download installation information.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.


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