383 Stroker Crate Engine

The 383 Stroker Crate Engine is a high-torque Chevrolet Small-Block V8 designed for street cars, muscle cars, trucks, hot rods and performance builds. With approximately 6.3L / 383 cubic inches of displacement, the stroker design provides increased torque and performance compared with a traditional 350-based engine.

Available 383 configurations can produce different power levels depending on the build, cylinder heads, camshaft, compression and induction system.

Upgrade your classic or performance vehicle with a 383 Stroker Crate Engine, a popular Chevrolet Small-Block V8 configuration built for strong torque and responsive performance.

A typical Chevrolet 383 uses approximately a 4.005-inch bore and 3.800-inch stroke, resulting in 383 cubic inches (about 6.3L). Chevrolet Performance offers several 383 versions, including the HT383, HT383E, SP383 and SP383 EFI, with factory-rated outputs ranging from 323 HP to 450 HP depending on configuration.

Key Specifications

• Engine: Chevrolet Small-Block V8
• Displacement: 383 cu. in. / approximately 6.3L
• Typical Bore: 4.005″
• Typical Stroke: 3.800″
• Block: Cast iron on Chevrolet Performance versions
• Crankshaft: Forged steel on many performance versions
• Valvetrain: Hydraulic roller on many configurations
• Aspiration: Naturally aspirated
• Fuel: Gasoline
• Horsepower: Configuration dependent
• Torque: Configuration dependent

For example, Chevrolet’s current SP383 Turn-Key is rated at 435 HP and 445 lb-ft, while the SP383 EFI Turn-Key is rated at 450 HP and 436 lb-ft.

Common Applications

Depending on the exact 383 configuration, this engine can be suitable for:

• Chevrolet Camaro
• Chevrolet Chevelle
• Chevrolet Nova
• Chevrolet Impala
• Chevrolet El Camino
• Chevrolet C10 / C20 trucks
• Chevrolet K10 / K20 trucks
• Chevrolet Corvette
• Classic Chevy muscle cars
• Hot rods
• Street rods
• Custom performance vehicles