i'm with clause on this one! make the car as you wish but keep ALL parts for it as original. you can always change it back to a ohc 6 car if you have the original gear but if you sell it your out ALOT of cash because it becomes just another one of "those" birds who changed over. stash the 6 and build an 8 to put in it and enjoy it all you want!

also in the diagrams, the ohc 6 mounts are on the top. the v-8 mounts are the ones at the bottom. good luck and god bless!