The 66 engine will bolt right up to the 56 bell housing. The 3 speed trans will bolt right up to the bell housing that the 4 speed was. I agree you are better off with original trans. unless you get a T-5 o-drive trans. It will bolt up to the same bell housing with some simple mods to the trans.
George


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum