sp383 deluxe


Big torque 383 stroker

When it comes to cranking serious torque from the classic Small-Block, it’s hard to beat the 383 stroker combination, which uses a long, 3.800-inch stroke with 4.005-inch bores to generate exceptional low-end pulling power and surprising high-rpm horsepower.

PART NO. 19355722


435 HP @5600 RPM


445 LB-FT @4600 RPM

Super Small-Block

It features lightweight aluminum cylinder heads based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. Beehive-style valve springs enable great high-rpm performance and durability, allowing the SP383 to rev higher and build more horsepower.

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.  

SP383 Tech Specs

  • Part Number: 19355722
  • Engine Type: Chevy Small-Block V8
  • Displacement (cu. in.): 383
  • Bore x Stroke (in.): 4.000 x 3.800
  • Block (P/N 88962513): Cast-iron with 4-bolt main caps
  • Crankshaft (P/N 12489436): Forged steel
  • Connecting Rods (P/N 12497624): Heavy-duty forged steel
  • Pistons (P/N 12499103): Hypereutectic 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 19300955): Fast Burn aluminum;
  • 62-cc chambers
  • Valve Size (in.): 2.000 intake / 1.550 exhaust
  • Compression Ratio: 9.6:1
  • Rocker Arms (P/N 19210724): 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

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.