QUALITY PARTS.
HIGH-CALIBER BUILD.
Offer Valid 1/1/24 to 12/31/24
$250
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
323 HP @4200 RPM
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
Mobil 1 is now The Official Motor Oil of Chevrolet Performance.