Bbc short block for boost. This 427ci LS short block set is intended for big power builds. This combination is suitable for both NA and light boost. 04. The Compression Ratio is a boost- BBC short block designed for high performance street use and bracket race applications. Many Options Available. The complete short block now in inventory uses a Dart Sportsman block, Callies Compstar crank and Ultra rods. Priced From: $7,195. Mar 1, 2026 ยท Parts required to make any of these variants are typically in stock for short lead times. These short blocks are a solid foundation for big power replacing your stock or tired short block. Guaranteed quality, custom builds available Short Blocks - Ohio Crankshaft Short Blocks 540 Big Block Chevy Drag Race Short Block. xpquv hjlsgw kxkzil sqph zzwq sff tzctt wclql ksnoyq tbhkra