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Chevrolet Performance HT383 383ci Engine 323 HP @ 4200 RPM

Chevrolet Performance 19355720


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Chevrolet Performance HT383 383ci Engine 323 HP @ 4200 RPM $4,739.31
HT383 383ci Engine
  • 323 HP @ 4200 RPM
  • 444 ft/lbs TQ @ 3000 RPM

  • Chevrolet Performance 19355720 Details

    HT383 383ci Engine

  • Requires addition of carburetor, ignition, and starter (not included)
  • Rochester Quadrajet or Holley 770-cfm carburetor recommended
  • Comes with 12-3/4'' (12.75'') externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission
  • Has right-side (passenger) oil dipstick
  • Designed for pre-1976 street vehicles or any off-road vehicle
  • Not intended for marine applications
  • Distributor with Melonized Steel Gear 809-88961867 MUST be used

  • 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.

  • Engine Type: Chevy Small-Block V-8
  • Displacement: 383ci
  • Bore x Stroke: 4.000'' x 3.800''
  • Block: Cast-iron with 4-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; 64cc chambers
  • Valve Size: 1.940'' intake / 1.500'' exhaust
  • Compression Ratio: 9.1:1
  • Rocker Arms: Stamped steel
  • Rocker Arm Ratio: 1.5:1
  • Water Pump: Cast iron
  • Recommended Fuel: Regular Pump (87 octane)
  • Ignition Timing: 32° Total @ 4000 rpm
  • Maximum Recommended RPM: 5000
  • Balanced: External
  • GM Warranty

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

    Will this bolt right into my 1990 suburban without modifications?

    Asked by: Joshmerin
    No, this is a carburetor style engine and is not designed to work with your EFI system. It can be used, but it will take some extra installation items.
    Answered by: Rusty B
    Date published: 2018-06-06

    Does this engine have provisions for a mechanical fuel pump?

    Asked by: KevinF
    Yes it does have the boss on the block for a mechanical fuel pump.
    Answered by: Rusty B
    Date published: 2018-03-22
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    Easy Kits
    Items You Need
    To prevent engine damage, a distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts.
    Some parts are not legal for use in California or other states with similar laws / regulations