Competition Cams 822-16 High Energy Hydraulic Lifters for Small and Big Block Chrysler<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>.904” diameter; 109g weight; 1.88” seat height</li><li>Patented orifice metering valve precisely meters oil to the rocker arms</li><li>Continuous contact between metering valve and hardened pushrod seat is maintained， eliminating excessive oiling at high engine speeds</li><li>Contain a longer piston than conventional hydraulic lifters， which provides more load bearing surface and increases lifter longevity</li><li>Lightweight check valve disc allows for quicker response and maintains added control at all engine speeds and loads</li></ul></div><img src="http://ecx.images-amazon.com/images/I/417te8slfhL.jpg" noproxy>