SKU: PQX9040000
MPN: 9040000
The Billet Steel Main Girdle Kit for SBC 400 is a crucial upgrade for serious small-block Chevrolet builders and vintage drag racers. This kit is specifically designed for those running high-horsepower SBC 400 strokers or big-displacement combinations, addressing main bearing flex and block distortion that can lead to power loss and reduced reliability.
Constructed from billet steel, this girdle kit weighs 9.25 pounds and offers superior rigidity compared to cast-iron alternatives. It works by clamping down across the main bearing caps, significantly reducing deflection during combustion events. This design helps stabilize bearing clearances, reduce wear, and maintain ring seal, making it ideal for high-performance applications.
Engineers and experienced builders will appreciate the straightforward installation process, as the girdle bolts to the existing main caps during initial assembly. This kit is engineered to fit the unique bore spacing and cap geometry of the 400-cube block, ensuring optimal clamping force distribution for enhanced performance.
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