Does anyone know of an adapter that will mate a standard stick shift trans to a 500/425 Cadillac engine? I want to try something... but I cannot find an adapter to get away from the Auto trans.
do you want an SFI certified bellhousing ? this guy even sells pilot bushings that require no machining http://www.cad500parts.com/catalog/page29.htm
all you need is a pontiac standard bell housing and a flywheel from an after market supplier. I think McLoud or Mc somebody makes the flywheel. Then you have to drill the crank for the pilot bushing,
You don't need an "adapter"....you need a Buick, Olds or Pontiac manual shift bell housing......so-called BOP......that block pattern is the same as the Caddy. The flywheel may be the more difficult to source......not sure if there is a factory GM flywheel that fits, though aftermarket types are available.
in the spirit of this http://www.jalopyjournal.com/forum/showthread.php?t=828037 google is your friend.