Thanks for the info.Heres where im at --- i am told a small block mopar bellhousing will bolt up at the top but need to fabricate a 1" spacer and tap in remaining bolts. I only have the original bell housing to work off of at this time but the input shaft housing on a hemi a833 that mates with the bellhousing is4.80 " identical to the original 54 bell housing. My question is --what would i have to do to make this work i.e. pilot brg.-clutch fork/t.o. brg. etc--- and why wont it work??thanks again