KONG PERFORMANCE LSA/LS9 Billet HD Belt Tensioner
Smaller than stock pulleys, combined with inadequate belt wrap from the factory is a recipe for belt slip on the LSA/LS9 that we have seen and been dealing with for many years. The best solution up to this point was fighting to install the tightest belt possible while frequently changing belts to keep belt slip to a minimum.
Aside from belt slip, the OEM tensioners have been known to fail for a variety of reasons.
We took all of these issues into consideration and decided a new tensioner was necessary with a complete design overhaul. Performance, durability, and appearance were all taken into account during the design process to come up with the best possible alternative solution for a belt tensioner.
IMPORTANT: 2.45” Supercharger pulley or smaller only! Any supercharger pulley larger than that may come into contact with the tensioner pulley due to increased tensioner arm travel.