Conversion camshafts are a hybrid, with early '99-'06 inner cam journals and late '07-'17 outer cam journalsUpdate old mechanical-style cams and tensioners to new-style hydraulic tensioner system525 Cam:Designed to increase torque band width and increase fuel economyBolt in camshaft upgrade for stock 88'' and 96'' enginesPerforms well in 103'' stroker enginesProduces strong low and mid range power with linear horsepower and torque curveCan be used with factory valve springs, pushrods and liftersIncreases throttle response and eases startingResponds well to increased compression and cylinder head workRpm range 1750-55009° OverlapConversion camshafts do not fit in a conversion camplate.Uses the '07-'17 camplate and oil pump with '07-'17 and oil pump with '07-'17 style hydraulic tensioners, chains, sprockets and spacers. Sold separately.Made in the USA