Anyone use the Billet timing cover from ARE engineering solid Roller ?

AR281 is the matching button. The nylon might also work just fine but you'll have to machine it down to the correct size. The AR281 should drop in and give you the correct thrust as long as you have the correct timing chain gasket. There are 3 or 4 different thicknesses of timing chain gasket available so you might want to consider trying different gaskets rather than machining the button.

Cam button, big block and Hemi | AR Engineering