The #204x28 damper is designed for use in SBF engines using 28oz. externally balanced crankshaft. The damper utilizes the stock late model 4 bolt pulley pattern and the spacing matches the 86-93 Mustang accessory system. This damper is best matched for stock or modified engines producing up to approximately 1000 hp. For applications over 1000 hp please look at the #207 race damper.
Inside the light weight billet aluminum cover is a free floating wet friction clutch pack assembly that utilizes spring loaded inertia rings to dampen crankshaft harmonics over a wide RPM range. The rings work in conjunction with clutches to provide outstanding dampening action. That action does generate some heat, and we use a small amount of fluid inside that acts as a lubricant as well as dissipates heat to the outer body.
****If you choose the flying magnet crank triger option please include the following in the notes section (under delivery method) when checking out -