SR20 Billet Main Girdle
Raise the limit of your SR20’s bottom end reliability with a Plazmaman billet main girdle. Unlike the factory unit, the Plazmaman’s billet girdle solidifies the lower components of the engine by tying the main caps to the intermediate sump. This prevents twisting and warping of the block under high horsepower Essential to eliminate main cap walk for applications over 600rwhp / 450rwkW Comes pre-drilled to suit 1/2″ ARP main studs.
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