COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Complete Kit Lift: .552"/.555" Duration: 274°/286° RPM Range: 1800-6000
249-K11-246-3
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Chevy 396-454ci Big Block 1965-96
High performance street, very strong mid-range, with headers & stall.
| Operating Range: | 1800-6000 RPM |
| Duration Advertised: | 274° Intake / 286° Exhaust |
| Duration @ .050'' Lift: | 230° Intake / 236° Exhaust |
| Valve Lift w/1.7 Rockers: | .552'' Intake / .555'' Exhaust |
| Lobe Separation Angle: | 110° |
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
High performance street, very strong mid-range, with headers and 2200+ stall.
Specifications:
Are the valve seals umbrella style or positive seal?
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