QUALITY PARTS.
HIGH-CALIBER BUILD.
Offer Valid 1/1/24 to 12/31/24
$250
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 by matching it with the driving convenience of electronic fuel injection. The SP383 EFI also features a high-performance roller camshaft and lightweight aluminum, Fast Burn cylinder heads with modern valvetrain technology that include beehive-type valve springs.
PART NO. 19433045
450 HP @5800 RPM
436 LB-FT @4800 RPM
Vintage look, contemporary drivability
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, ready to install.
Connect & Cruise Powertrain System
Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.
†Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. Parts only when consumer repaired or installed in non-highway application. Coverage limited to defects in material and/or workmanship of the specific part only. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice.
††Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Mail-in rebate offer not available with other offers. See gmpartsrebates.com for details, applicable rebate amounts, and rebate form. Rebates must be submitted by 1/31/25. Rebates may be submitted over two invoices within 120 days of each other. Allow 6 to 8 weeks for delivery of debit card. Offer valid 1/1/24 to 12/31/24.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details. Rebate form and details available at chevrolet.com/performance/offers.
Installation Guides
Find everything from vital data about your engine’s capabilities to how to install it into your build.
SP383 EFI Deluxe Tech Specs
- Part Number: 19433045
- Engine Type: Chevy Small-Block V8
- Displacement (cu. in.): 383
- Bore x Stroke (in.): 4.005 x 3.800
- Block (P/N 19433406): 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.): 208º intake / 221º exhaust
- Cylinder Heads (P/N 19417592): Fast Burn aluminum;
62-cc 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: 36° total at 4000 rpm
- Maximum Recommended rpm: 6000
- Balanced: External
- Flexplate (P/N 14088765): 12.750"
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.
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