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SP383 Chevrolet Performance Crate Engine

Brand: Chevrolet Performance

Part Number: 19355722

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$6,260.00

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SP383 Chevrolet 383 cu. in. Deluxe Long-Block Crate Engine

More stroke, more size, more cam, more power. More is better. Get MORE!

This stroked Small-Block is the latest triumph from Chevrolet Performance. Improved Fast Burn-style cylinder heads and a specific high-flow aluminum intake manifold combined with the extra cubic inches from the longer stroke, push horsepower and torque to 445!

The updated aluminum heads feature 2.00/1.55-inch valves, a unique combustion chamber design and LS-style beehive valve springs for greater high-rpm performance and durability. A hydraulic roller camshaft with more the 0.500-inch lift optimizes the airflow enabled by the high-flow head design.

The SP383 is built with a brand-new block featuring four-bolt main caps. It also features a forged steel crankshaft. Unique valve covers distinguish the engine from previous versions!

 

19355722 - SP383 Chevrolet 383 cu. in. Deluxe Long-Block Crate Engine

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

More stroke, more size, more cam, more power. More is better. Get MORE!

Chevrolet's engineers continue to refine the classic Chevy V8 for even greater performance and this stroked Small Block is their latest triumph. Improved Fast Burn cylinder heads and a specific high-flow aluminum intake manifold combined with the extra cubic inches from the longer stroke, push horsepower and torque to 445!

The updated aluminum heads feature 2.00/1.55-inch valves, a unique combustion chamber design and LS-style beehive valve springs for greater high-rpm performance and durability. A hydraulic roller camshaft with more the 0.500-inch lift optimizes the airflow enabled by the high-flow head design.

The SP383 is built with a brand-new block featuring four-bolt main caps. It also features a forged steel crankshaft, and that aggressive camshaft mentioned above as well as durable high-silicon pistons. Unique valve covers distinguish the engine from previous versions and it now includes a high-flow, aluminum intake manifold!

Use a Holley 770-cfm four-barrel carburetor (P/N 19170093) to make the most of the engine's capability and reproduce the quoted performance numbers. A distributor, wires, plugs and some additional components are required to finish the assembly – all available from Karl Performance Parts!

 19332532 SP383 dyno chart

SP383 Specs:
Part Number: 19355722
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 383
Bore x Stroke (in): 4.000 x 3.800
Block (P/N 88962513): Cast-iron with 4-bolt main caps
Crankshaft (P/N 12489436): Forged steel
Connecting Rods (P/N 12497624): Heavy-duty PM steel
Pistons (P/N 12499103): Hypereutectic aluminum
Camshaft Type (P/N 19210723): Hydraulic roller
Camshaft 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 nominal
Rocker Arms (P/N 12367345): Aluminum Roller Style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: 92 octane
Ignition Timing: Base 36° Total at 4,000 rpm
Maximum Recommended rpm: 6,000
Balanced: External

This Chevrolet Performance Crate Engine includes a 24-Month or 50,000-Mile/80,000-Kilometer Limited Warranty

Recommended Transmissions:  Hydra-Matic 4L65-E Four-Speed Automatic, P/N 19260380 or T56 Super Magnum Six-Speed Manual, P/N 19329795

Installation Notes:
• Does NOT include dipstick, dipstick tube, thermostat, thermostat housing or spark plugs
• MUST use distributor with melonized steel gear (P/N 10456413), or engine damage will occur
• Requires addition of carburetor, ignition/distributor, fuel pump and starter (all not included)
• Horsepower numbers were developed with a 770 cfm Holley carburetor, P/N 19170093 (not included)
• Includes a 12.75" 153-tooth Flexplate for Automatic Transmissions P/N 14088765
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications

 

 

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

Click here for more detailed warranty information.