CATEGORIES HOMEHarbor Freight EnginesPredator EnginesPredator 212 HemiAftermarket Parts 1:2 Ratio Roller Rocker Arms, Hemi Predator Item Number: CL-2583 Price: $106.00 Add to Cart Description This is a pair of 1:2 roller rocker arms for the Hemi Predator Engine. Accessories Valve Cover Gasket, Hemi Predator 26lb "White Stripe" Valve Spring, Clone