The Powerforce line of balancers are intended for non-SFI high performance applications. Although primarily meant for street use, these balancers are also suitable for racing applications where there is no requirement to meet SFI specifications.
It is not recommended to use these balancers in excess of 6,500RPM. Also, they are not recommended for marine or circle track applications due to excessive heat generated. While high temp elastomer is used in every balancer, certain applications are not suitable.
Our two dampers for these engines are set up for 4-bolt accessory pulleys. If you have an earlier engine with 3-bolt accessory pulleys, you can use this damper, if you switch to 4-bolt pulleys. The damper is supplied as a neutral balance damper and the kit includes three different counterweights. One counterweight is for the 304 engine, one for the 360 (also fits some late 401's) and one is for the majority of 401 engines. The included instructions provide complete information for which counterweight to use with illustrations of the various types of dampers for identification purposes. Both of these dampers include 60° of clear, easy to read timing marks along with engraved marks every 90 degrees on the damper circumference.