Chevrolet Performance 19435448 - HT383 Crate Engine - 323HP

Is it time to take your Pre-1980 GM truck to the next level. We have a solution with the big-torque HT383 crate engine. The displacement gain and unique parts were chosen to guarantee a wide, flat torque curve that will supply at least 400 lb.ft between 2,500 and 4,000 RPM. The engine starts with a brand-new block with four-bolt main caps – a strength-enhancing feature most production truck blocks don’t have. The crate engine includes: a forged steel crankshaft, heavy duty PM steel rods, hypereutectic aluminum pistons, smooth hydraulic roller camshaft, iron Vortec heads, and aluminum intake manifold. The 9.1:1 compression ratio is perfect for regular gasoline at all altitudes and engine loads. Ready for you to swap over the accessories from the tired SBC. It is also backed with a 24-month/50,000 mile limited warranty. Engine HT383 Horsepower 323HP @ 4200RPM Torque 444FT/LBS @ 3000RPM Compression Ratio 9.1:1 Block Cast iron with 4-bolt main caps Crankshaft 4340 forged steel, 3.800" Heads Vortec iron with 64cc chambers Valves 1.94"/1.50" Camshaft Lift 0.431"/0.451" Hydraulic Roller Dur. @ 0.050" 196°/206° Tech Notes Requires Addition of Carburetor, Ignition and Starter (Not Included) 670CFM Carburetor Recommended Comes with 12.75inch Externally Balanced 153-tooth Automatic Transmission Flexplate. Requires Externally Balanced Flywheel for Manual Transmission Has Right Side Oil Dipstick Designed for Pre-1976 Street Vehicles or any Off-Road Vehicle Not Intended for Marine Applications.