HT383 Small Block Crate Engine | Chevrolet Performance

HT383

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. 19355720

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.  

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: 19355720
  • 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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