Chevrolet Performance HT383 383ci Crate Engine – 19433036

Experience stroker small-block performance with the Chevrolet Performance HT383 383ci Crate Engine. This enhanced-displacement engine delivers approximately 436 horsepower and 444 lb-ft of torque through a 0.400-inch stroker crankshaft. The HT383 features aluminum cylinder heads, hydraulic roller camshaft, and components optimized for street performance. The 6.3L displacement provides excellent torque characteristics and power delivery. Perfect for muscle car restorations, street rods, and custom builds requiring more displacement than a standard 350. Factory-assembled and dyno-tested for quality assurance.

**Technical Specifications:**

HT383 Technical Specifications
Part Number: 19433036
Engine Type: Chevy Small-Block V-8
Displacement (ci): 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): Forged 4340 steel
Connecting Rods (P/N 12497624): High-strength forged steel
Pistons (P/N 12499103): Hypereutectic aluminum
Camshaft Type (P/N 14097395): Hydraulic roller
Camshaft Lift (in): 0.431 intake / 0.451 exhaust
Camshaft Duration (@ .050 in): 196° intake / 206° exhaust
Cylinder Heads (P/N 12558060): Cast iron Vortec; 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 gasoline
Ignition Timing: 32° total @ 4,000 rpm
Recommended Maximum RPM: 5000 rpm
Balanced: Externally