Comp Cams High Energy Hydraulic Lifters - Set of 16

Not all lifters are created equal. Comp's "High Energy" hydraulic lifters are their version of standard non "anti-pump up" style lifters. They are produced with a longer piston than conventional lifters, and also feature a lightweight check valve disc that allows for quicker response, and added oil control at all engine speeds and loads. Use these Comp High Energy Hydraulic lifters with stock, stamped steel type rocker arms, with cams .510" lift or less, in applications which the engine will see less than 5500 RPM. For applications above 5000 RPM (or for any type of racing applications,) cams above .510" lift (which generally will use dual valve springs,) we highly recommend their "Anti Pump up" style Pro Magnum Lifters, (Listed separately.) Seat height on these is 1.88".