PROFORM PARTS has a new addition to their extensive line of performance valve train products. These new roller rockers for the GM LS1 and LS6 engines are engineered to replace the factory rockers and fit under the stock GM valve covers. Obviously roller rocker reduce internal friction and wear, as well as prolong valve train component life. They can be used with all types of engine oil and additive lubricants.

These PROFORM PARTS rockers are available in 1.7-ratio (#67940) or 1.8-ratio (#67941) and are installed with normal hand tools. Simply remove the factory rocker and rocker stands, and install these new PROFORM roller rockers. It is recommended to always check head and valve cover clearance and that you have the correct lifter preload. This is particularly important when changing camshafts or having the heads machined. Also make sure the pushrods are the correct length for your modifications.

You can find out more about these roller rockers and their complete line of internal and external engine parts and tools at www.proformparts.com.