Description
Overview
The ATK High Performance Chevy 383 Stroker Race Series Short Blocks SP35 is a high-performance short block engine designed for serious racing builds and powerful street machines. Engineered with premium components and precision machining, this 383 stroker short block delivers the strength and reliability required for high horsepower applications.
Built around a durable cast-iron Chevy small-block with a 4-bolt main design, the SP35 provides a solid foundation for performance builds. It features a forged 4340 steel crankshaft, forged 4340 H-beam connecting rods, and forged aluminum dish pistons, creating a strong rotating assembly capable of handling demanding racing conditions.
With a displacement of 383 cubic inches (6.3L), this short block is designed to deliver excellent torque and power potential when paired with the right cylinder heads, camshaft, and induction system. The precisely aligned and honed main bores ensure smooth operation and improved durability, while the 9.025-inch deck height and one-piece rear main seal configuration provide compatibility with many small-block Chevy performance setups.
Hardcore engines need a hardcore bottom end; that’s why ATK High Performance developed these Chevy 383 Stroker Race Series short blocks. These short blocks are built around the strongest components available so that they can handle serious horsepower for your race car or hardcore street machine.
Race Series short blocks include the following:
* Handpicked and seasoned 4-bolt main block
* Aligned and honed main bores
* Forged 4340 crankshaft
* 3.75 in. stroke
* Forge H-beam connecting rods
* Forged dish top pistons
