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Chevrolet Performance 19332531U

Chevrolet Performance *USED - HT383E Engine 323 HP @ 4200 RPM


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Chevrolet Performance *USED - HT383E Engine 323 HP @ 4200 RPM $4,791.99
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To order this item contact Customer Service at 1-800-345-4545.
*USED - GM Warranty Does NOT Apply
HT383E Engine
  • 323 HP @ 4200 RPM
  • 444 ft/lbs TQ @ 3000 RPM
  • 1996-99 Chevy & GMC Full-size Trucks & SUV
  • Upgrades L31 350
  • *Not emissions-legal in California or states that have adopted CA emission
  • Chevrolet Performance 19332531U Details

    HT383E Engine

  • Requires the reuse of the stock intake manifold, wiringharness, and fuel injection system
  • Due to calibration variances between half, three-quarter- andone-ton vehicles, this engine is designed for half-ton trucksand SUVs only
  • This engine is not emissions-legal in CA or states that haveadopted CA emissions regulations
  • Comes with 12.75'' externally balanced 153-tooth automatictransmission flexplate. Requires externally balanced flywheelfor manual transmission.
  • Has right-side dipstick
  • Not available as a Partial Engine
  • Performance recalibration of OEM ECU will significantlyincrease torque and horsepower

  • *Emissions-Legal Stroker for Trucks

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    Chevrolet Performance's HT383E crate engine is an affordable and more powerful direct replacement for the tired 350 engine in your 1996-99 full-size GM truck or SUV. The larger displacement delivers up to 323 horsepower at 4,200 rpm and a whopping 444 lb.-ft. of torque. It is extra power you won't get with a stock-type rebuild or reconditioned used engine.

    Like the standard HT383, this crate engine starts with a cast-iron block with four-bolt main caps, a forged steel crankshaft, a smooth hydraulic roller camshaft and a set of iron Vortec cylinder heads. Its 9.1:1 compression ratio is perfect for regular gasoline at all altitudes and engine loads. It also includes a new water pump.

    The HT383E is designed to replace the L31 5.7-liter engine in half-ton models of the Silverado, Suburban, Tahoe, Sierra and Yukon. Simply swap the intake manifold, throttle body, exhaust manifolds and other accessories from the original 350.


    • Engine Type: Chevy Small-Block V-8
    • Displacement: 383ci
    • Bore x Stroke: 4.000'' 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 Iron; 64cc combustion chambers
    • Valve Size: 1.94'' intake / 1.50'' exhaust
    • Compression Ratio: 9.1:1 nominal
    • Rocker Arms: Stamped steel
    • Rocker Arm Ratio: 1.5:1
    • Water Pump: Cast iron, long-style
    • Flexplate: 12.750''; 153-tooth
    • Recommended Fuel: Regular pump
    • Maximum Recommended rpm: 5000
    • Balanced: External

    GM Warranty

    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.