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Description
Looking to push your RB to the absolute limit? The Hi Octane Racing billet block girdle is designed and tested for applications making up to and over 1500hp! A must have for any serious street, circuit, drift or drag build!
Our brace considerably strengthens the block while supporting the crank and main bearings. Precision CNC machined from billet steel, the Hi Octane Racing girdle is one of the best options on the market for your cast engine blocks.The billet steel main caps are also a big upgrade over the standard cast ones, and will not crack when pushing the limits of your RB. Our girdle uses 12mm main studs by incorporating RB26 head studs for the mains (ARP 2000 option listed).