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For the ultimate GM Performance Parts small-block crate engine, choose the ZZ383—a combination of Fast Burn aluminum performance heads and a 383" stroker small-block that can add up to 425 horsepower and 449 lb.-ft. of torque.
The result is 435 exhilarating horsepower and 445 lb.-ft. of seat-tugging torque. Like all of our 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.
ZZ383 / 425HP GM Performance Parts Base Crate Engine. The ZZ383/425HP offers big block power from a small-block engine! Its combination of Fast Burn aluminum performance cylinder heads and a 383 cid stroker small block adds up to 425 horsepower and 449-lb/ft of torque!
The beehive-style valve springs enable greater high-rpm performance and durability, allowing the SP383 to rev higher and build more power to complement its low-rpm torque. JEGS has everything you need to finish off the engine and get this small-block stroker running in your vehicle faster!
Free Shipping - Chevrolet Performance SP383 C.I.D EFI Turnkey Long Block Crate Engines with qualifying orders of $109. Shop Crate Engines at Summit Racing.
This is the same short block that GM uses for the 383/340 hp and the 383/425 hp Crate Engines. Specifications: Displacement: 383 CID. Bore x Stroke: 4.00” x 3.80”. Compression Ratio: 9.1:1 with 64cc heads, 9.6:1 with 62cc. Block: Cast Iron, 1 piece rear seal, 4-bolt main caps.
Pace Performance offers the best pricing on products offered by Chevrolet Performance Parts. Including 88962749 - ZZ383 Hypereutectic Aluminum Piston +0.030 (Second Design).
