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HT383 SMALL-BLOCK CRATE ENGINE

HT383 SMALL-BLOCK CRATE ENGINE

QUALITY PARTS.
HIGH-CALIBER BUILD.

Offer Valid 1/1/24 to 12/31/24

$250 rebate* on the purchase of a Chevrolet Performance Transmission within 180 days of the purchase of any Chevrolet Performance Crate Engine**. Rebate amount dependent on the package purchased.

PARTS INTENDED FOR COMPETITION USE ONLY.
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PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

PROPOSITION 65 WARNING.
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Big torque for your truck

Got a pre-1980 GM truck with a tired Small-Block? Forget the rebuild and take your trusty truck’s capability to the next level with our big-torque HT383 stroker engine.

PART NO. 19433036

WhyBuy

323 HP @4200 RPM

WhyBuy

444 LB-FT @3000 RPM

Torque for your truck

Extra displacement and unique parts are designed to build a wide, flat torque curve. The 323 hp and 444 lb.-ft. of torque is power you simply won’t get with a stock-type rebuild.

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.

HT383 Tech Specs

  • Part Number: 19433036
  • Engine Type: Chevy Small-Block V-8
  • Displacement (cu. in.): 383
  • Bore x Stroke (in.): 4.000 x 3.800
  • Block (P/N 88962516): Cast-iron with four-bolt main caps
  • Crankshaft (P/N 12489436): 4340 forged steel
  • Connecting Rods (P/N 12497624): Heavy-duty Forged steel
  • Pistons (P/N 12499103): Hypereutectic aluminum
  • Camshaft Type (P/N 14097395): Hydraulic roller
  • Camshaft Lift (in.): .431 intake / .451 exhaust
  • Camshaft Duration (@.050 in.): 196° intake / 206° exhaust
  • Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers
  • Valve Size (in.): 1.940 intake / 1.500 exhaust
  • Compression Ratio: 9.1:1
  • Rocker Arms (P/N 10089648): Stamped steel
  • Rocker Arm Ratio: 1.5:1
  • Water Pump (P/N 88894341): Cast iron
  • Recommended Fuel: Regular pump
  • Ignition Timing: 32° Total @ 4,000 rpm
  • Maximum Recommended rpm: 5000
  • Balanced: External
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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.