LS Engine Rocker Arm Trunnion Kit with Big Clips 5.3L 6.0L 6.2L 7.0L LS1 LS3 LS7 COMPATIBILITY INFO DESCRIPTION These GM LS Series Upgrade Trunnion Kits are designed to convert the stock LS Series rocker arms to captured roller journals for high RPM racing applications. They include rocker arm journals, rocker arm bearings, and rocker arm retaining rings for a complete installation. They are more fuel efficient than new racing rocker arms and can handle much higher RPMs than stock. FITS: LS1/LS2/LS3/LS6/LS7 4.8/5.3/5.7/6.0/6.2/7.0 Engines IN THE BOX: -16 rocker arm journals – LS type upgrade -32 rocker arm bearings – LS type upgrade -32 rocker arm snap rings – LS type upgrade -16 LS journal kit bolts -2 journal washers