Xtreme 4x4 X4254H Hydraulic Flat Tappet Camshaft & Lifter Kit
Lift: .447''/.462''
Duration: 254°/262°
Lobe Separation Angle: 111°
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 low-end and mid-range torque, good idle.

Operating Range:	1000-5200 RPM
Duration Advertised:	254° Intake / 262° Exhaust
Duration @ .050' Lift:	210° Intake / 218° Exhaust
Valve Lift w/1.5 Rockers:	.447' Intake / .462' Exhaust
Lobe Separation Angle:	111°

265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


Strong low end and mid-range torque, good idle.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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