Seller notes

Xtreme Energy 256H Hydraulic Flat Tappet Camshaft & Lifter KitLift: .447''/.454''Duration: 256�/268�RPM Range: 1000-5200 *Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.Strong torque thru low end & mid-range, good idle.Operating Range:1000-5200 RPMDuration Advertised:256° Intake / 268° ExhaustDuration @ .050'' Lift:212° Intake / 218° ExhaustValve Lift w...

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