The Chevrolet Performance HT383E crate engine is an affordable and more powerful emissions-legal* direct replacement for the tired 350 engine in your 1996-99 full-size GM truck or SUV. The larger displacement delivers up to 10 percent more horsepower and more usable torque for effortless towing. It is extra power you won’t get with a stock-type rebuild or reconditioned used engine.
The HT383E is designed to replace the L31 5.7-liter engine in half-ton models of the Silverado, Suburban, Tahoe, Sierra, and Yukon. You simply swap the intake manifold, throttle body, exhaust manifolds, and other accessories from your old 350 onto the HT383E and install it in your truck with no further modifications.
The engine uses a brand-new four-bolt main block, a forged-steel crankshaft, a smooth roller camshaft, and durable iron Vortec heads, helping it deliver the dependable power you expect from the venerable small-block V-8. It even comes with a new distributor, water pump, and other components that would be replaced during a rebuild.
*This engine is not emissions-legal in CA or states that have adopted CA emissions regulations.
Part Number: 19332531
Engine Type: Chevy Small-Block V-8
Displacement (cu. in.): 383
Bore x Stroke (in.): 4.000 x 3.800
Block (P/N 88962516): Cast-iron with four-bolt main caps
Crankshaft (P/N 12489436): 4340 forged steel
Connecting Rods (P/N 12497624): Heavy-duty PM steel
Pistons (P/N 12499103): Hypereutectic aluminum
Camshaft Type (P/N 14097395): Hydraulic roller
Camshaft Lift (in.): .431 intake / .451 exhaust
Camshaft Duration (@.050 in.): 196° intake / 206° exhaust
Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers
Valve Size (in.): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.1:1
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Water Pump (P/N 88894341): Cast-iron
Recommended Fuel: 87 octane
Maximum Recommended rpm: 5000
Find everything from the vital data about your engine’s capabilities to how to install it into your build.
*The Manufacturer's Suggested Retail Price excludes, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' .
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.
The Manufacturer's Suggested Retail Price excludes tax, shipping and installation.