HT383 383ci Connect & Cruise Powertrain System 4L70-E Trans

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323 HP @ 4200 RPM
444 ft/lbs TQ @ 3000 RPM
Hydra-Matic 4L70-E Four Speed Transmission
2400-2800 RPM Stall Torque Converter

HT383 383ci TECH SPECS:
Engine Type: Small-Block V-8
Displacement: 383ci
Bore x Stroke: 4.005' x 3.800'
Block: Cast-iron with four-bolt main caps
Crankshaft: 4340 forged steel
Connecting Rods: Heavy-duty PM steel
Pistons: Hypereutectic aluminum
Camshaft Type: Hydraulic roller
Camshaft Lift: .431' intake / .451' exhaust
Camshaft Duration (@.050 in.): 196° intake / 206° exhaust
Cylinder Heads: Vortec cast iron w/ 64cc combustion chambers
Valve Size: 1.94' intake / 1.50' exhaust
Compression Ratio: 9.1:1
Rocker Arms: Stamped steel
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Regular pump
Maximum Recommended rpm: 5000
Balanced: External
Intake Manifold: Dual plane, Aluminum
Water Pump: Cast iron, Long-style, Standard rotation
INSTALLATION NOTES:
Requires addition of carburetor, ignition, and starter (not included)
Rochester Quadrajet or Holley 770-cfm carburetor recommended
Comes with 12-3/4" 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

Extra Cubic Inches Deliver
Greater Torque For Your Truck!

Free Shipping!

Got a pre-1980 GM truck with a tired Small-Block? Forget the rebuild or reconditioned used engine and take your trusty truck's capability to the next level with this big-torque HT383 stroker crate engine. Its extra displacement and unique parts are designed to build a wide, flat torque curve you simply won't get with a stock-type rebuild.

The HT383 features a brand-new engine block with four-bolt mains - an upgrade for most production engines that came with two-bolt mains - along with a forged steel crankshaft and a smooth hydraulic roller camshaft. Its 9.1:1 compression ratio allows it to run on regular unleaded gasoline, too.

The HT383 is delivered with an aluminum intake manifold, ready for you to swap over the accessories from your tired engine. It's also backed by a 24-month/50,000-mile (80,000-km) limited warranty.

HT383 TECH SPECS: