SP383 Chevrolet Performance Crate Engine


  • 435hp @ 5,600 rpm/445 lb.-ft. @ 4,600 rpm
  • Forged Steel Crank in a Four-bolt Main Block
  • Lightweight Aluminum Cylinder Heads
  • High-flowing Single-plane Aluminum Intake

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: 19433035 Categories: , Tag:

SP383 Deluxe Crate Engine

P/N 19433035

435 hp @ 5,600 rpm / 445 lb.-ft. @ 4,600 rpm

SP383 Tech Specs:
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 383
Bore x Stroke (in): 4.005 x 3.800
Block (P/N 88962516): Cast-iron with 4-bolt main caps
Crankshaft (P/N 12489436): Forged steel
Connecting Rods (P/N 19355754): Heavy-duty, forged steel
Pistons (P/N 12499103): Hypereutectic aluminum
Intake Manifold (P/N 2496822): Single plane
Camshaft Type (P/N 19210723): Hydraulic roller
Valve Lift (in): .509 intake / .528 exhaust
Camshaft Duration (@.050 in): 222° intake / 230° exhaust
Cylinder Heads (P/N 19300955): Fast Burn aluminum; 62cc chambers
Valve Size (in): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.6:1
Rocker Arms (P/N 19210724): Aluminum roller style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36° Total at 4,000 rpm
Maximum Recommended rpm: 6,000
Balanced: External

Engine Includes:
• Fully GM assembled long block
• Black Aluminum Valve covers
• GM Eliminator Single Plane Vortec Intake Manifold
• 770cfm Chevrolet Performance Carb
• Oil pump, pick-up and oil pan
• 12-3/4” Auto Trans Flexplate
• 8” Harmonic Balancer
• Front timing cover
• Cast Iron Long Water Pump
• HEI Distributor, ignition wires, and spark plugs
• Oil Filter and Adapter
• Passenger Side RH Oil Dipstick and Tube
• GM Recommended Torque Converter Stall 2400-2800

Installation Notes:


  • Horsepower numbers were developed with a 770 cfm Holley carburetor, P/N 19170093
  • Chevrolet Perf. dual-plane intake manifold (P/N 12366573) may be used for more hood clearance (sold separately)
    • Use of the dual-plane, low-rise intake manifold may decrease peak power by 15-20 hp
  • Includes dipstick, dipstick tube, thermostat, thermostat housing or spark plugs
  • Designed for pre-1976 street vehicles or any off-highway vehicle
  • Not intended for marine applications

Supersedes old GM P/N 19332532 P/N 19355722 and P/N 19418657 and P/N 19432114

Weight 512 lbs


19355722, 19418657, 19432114

SP383 Deluxe Crate Engine

19433035 Chevrolet Motor

Our Latest Twist on the Big-Torque 383 Stroker!

When it comes to cranking serious torque from the classic Small-Block, it’s hard to beat the 383 stroker combination, which uses a long, 3.800-inch stroke with 4.005-inch bores to generate exceptional low-end pulling power and surprising high-rpm horsepower.

Chevrolet Performance’s stroker crate engine is part of our range of Street Performance engines and is designed for optimal performance on the street and the occasional trip down the quarter-mile.

It features lightweight aluminum cylinder heads based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves. Beehive-style valve springs enable great high-rpm performance and durability, allowing the SP383 to rev higher and build more horsepower. The result is 435 exhilarating horsepower and 445 lb.-ft. of seat-tugging torque.

Like all of our 350-based crate engines, it is built with a cast-iron block with four-bolt mains. It also features a forged steel crankshaft, an aggressive hydraulic roller camshaft and a high-flow, aluminum intake manifold. Use the Holley 770-cfm four-barrel carburetor, P/N 19170093 to achieve the listed horsepower and torque ratings.


Click here to download installation information.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.


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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to