Engines and Components› Engines, Blocks and Components
Chevrolet Performance
383 CID Short Block Assembly
SKU: 19418654
Advanced — 4+ hours
Description
This cast iron block features a 4.005-inch bore and a 3.800-inch stroke, contributing to its 383 cubic inch displacement. It is equipped with 4-bolt mains and is intended as the base for Chevrolet Performance SP383 crate engines. The assembly includes a 12.750-inch, 153-tooth flexplate.
Fitment
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Specifications
| Brand | Chevrolet Performance |
| Part Number | 19418654 |
| Category | Engines and Components |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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