Modern Technology Adds Range to the 383 Stroker!
Chevrolet Performance’s SP383 Deluxe uses LS-inspired valvetrain technology to expand its rpm range, matching the stroker combination’s traditional torque with more high-rpm horsepower. Lightweight aluminum cylinder heads based on the proven Fast Burn design are at the heart of the SP383’s performance capability. They feature beehive-style valve springs to enable great high-rpm performance and durability, allowing the SP383 to rev higher and build more horsepower.
PART NO. 19435452
435 HP @5600 RPM
445 LB-FT @ 4600 rpm
Small-block – Big Package
Additionally, the engine features a forged steel stroker crankshaft, an aggressive hydraulic roller camshaft and a high-flow aluminum single-pane intake manifold – and as a Chevrolet Performance Turn-Key Engine, it comes with the intake manifold and distributor installed. It also includes the carburetor, front-end accessory kit, crankshaft balancer, air cleaner, starter, water pump and spark plug wires (some installation required).
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.
†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 - 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 roads, streets, or highways. Visit www.chevroletperformance.com/emissions for more details.
SP383 Turn-Key TECH SPECS
- Part Number: 19435452
- Engine Type: Chevy Small-Block V-8
- 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
- Intake Manifold (P/N 12496822): Single-plane aluminum
- Camshaft Type (P/N 19210723): Hydraulic roller
- Valve Lift (in): .509 intake / .528 exhaust
- Camshaft Duration (@.050 in): 222” 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 nominal
- Rocker Arms (P/N 19432297): 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 RPM
- Balanced: External
NOTE: Distributor with melonized steel gear MUST be used with long-blocks and partial engines with steel camshafts, or engine damage will occur.
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.
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