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Chevrolet Performance 383ci/340HP HT Engine


Chevrolet Performance
Chevrolet Performance 383ci/340HP HT Engine

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The Chevrolet Performance HT (high torque) 383 Engine was designed for not only wanting but needing more power. Example: For towing a show car or bass boat with a 1970-Earlier GM truck that just doesn't have the power necessary to pass safely, this durable 383 with new components improves low-end RPM.

Specifications
  • Small Block Chevy 383 V8
  • 4.00" Bore x 3.80" Stroke
  • Horsepower: 340 at 4500 RPM
  • Torque: 435 ft/lbs at 4000 RPM
  • Cast Iron Block with 4-Bolt Main Caps
  • Forged Steel Crankshaft
  • Heavy-Duty PM Steel Connecting Rods
  • Aluminum Hypereutectic Pistons
  • Hydraulic Roller Camshaft
  • Camshaft Lift: .431" Intake, 451" Exhaust
  • Camshaft Duration at .050": 196° Intake, 206° Exhaust
  • Vortec Iron Cylinder Heads (64cc Chambers)
  • Valves: 1.94" Intake, 1.50" Exhaust
  • Compression Ratio: 9.1 to 1
  • Stamped Steel Rocker Arms (1.5 to 1 Ratio)
  • Recommended Maximum RPM: 5000
  • Cast Iron Water Pump
  • Fuel: 87 Octane
  • External Balance

    GM Warranty



  • 1 Product

    809-12499101
    HT 383 Engine
  • Passenger Side Dipstick
  • Not for Marine Use
    More info on Chevrolet Performance 12499101
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    Dyno Chart for Chevrolet Performance 12499101 Installation Instructions for Chevrolet Performance 12499101
  • $4,569.99
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    To prevent engine damage, a distributor with melonized steel gear must be used with long blocks and partial engines with steel camshafts.