Description
This steel internal/external damper meets and surpasses all the sfi ratings accepted by NHRA and IHRA and yet it is affordable! This Pro Race damper offers the ability for the engine builder to make a choice between either externally or internally balancing the crankshaft. No need to purchase another damper again, just simply remove the bolt on weight if the reciprocating assembly becomes light enough that it will allow for the engine to become internal balanced. Consult with us if you require more information on weather your application requires internal or external balancing.