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Reference Information

Camshaft Kits, Dual Energy Cam and Lifter Kits, Hydraulic Flat Tappet, Advertised Duration 255/261, Lift 0.421/0.451, Chevy, GMC, Small Block, Kit

These Dual Energy cam and lifter kits from COMP Cams have more exhaust duration and lift than intake. They are designed for applications where a slight sacrifice in low-end power is acceptable for an increase in mid and upper-range rpm horsepower. These kits are ideal for use with restricted exhaust port cylinder heads, or applications using a full-length exhaust system.