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. 19355672
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.
†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 1/31/24. 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 1/1/23 to 12/31/23. 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.
SP383 Tech Specs
- Part Number: 19355672
- 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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