**Please allow 2-3 weeks for all orders to ship as some parts do take longer to receive**
SP383 EFI Deluxe 450 HP
Part Number: 19433045
Your Price:
$12,682.14
Suggested Retail: $16104.31
California Proposition 65 Warning SP383 EFI Deluxe 450 HP Chevrolet Performance Small Block Crate Engine 19433045
450hp @ 5,800 rpm
436 lb.-ft. @ 4,800 rpm
NOTE: Refer to catalog for the complete horsepower and torque testing procedures.
SP383 EFI Deluxe Crate Engine
All of the same internal components and EFI system (including controller) as the SP383 EFI Turn-Key kit, but without a number of the accessories. Kit includes the distributor, water pump, damper and flexplate.
Big torque and EFI performance 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. Our comprehensive Turn-Key assembly is delivered with the distributor and damper installed. The throttle body, air conditioning pump, alternator, single-belt front-end accessory drive system and more are also included in the kit. The engine controller is also included.
Chevrolet Performance SP383 EFI Deluxe 450 HP Small Block Crate Engine Installation Notes
- Crate engine kit includes pre-programmed, self-learning control system
- Comes with a 12.750" externally balanced 153-tooth automatic transmission flexplate. An externally balanced flywheel is required for manual transmission applications. See catalog
- Not intended for marine applications
Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.
Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump
This part is intended for competition use only. See page 2 of catalog for complete details
| TECH SPECS | Part Number: 19433045 |
| Engine Type: | Chevy Small-Block V-8 |
| Displacement (cu in): | 383 |
| Bore x Stroke (in): | 4.005 x 3.800 |
| Block (P/N 19432109): | 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): | .509 intake / .528 exhaust |
| Camshaft Duration (@.050 in): | 220° intake / 230° exhaust |
| Cylinder Heads (P/N 19417592): | Fast Burn aluminum; 62cc chambers |
| Valve Size (in): | 2.000 intake / 1.550 exhaust |
| Compression Ratio: | 9.9:1 |
| Rocker Arms (P/N 19432297): | Aluminum roller style |
| Rocker Arm Ratio: | 1.5:1 |
| Recommended Fuel: | Premium pump |
| Ignition Timing: | 36º Total @ 4,000 rpm |
| Maximum Recommended rpm: | 6,000 rpm |
| Balanced: | External |
| Flexplate (P/N 14088765): | 12.750" |
| NOTE:Distributor with melonized steel gear MUST be used with long-blocks and partial engines with steel camshafts, or engine damage will occur | |