Originally Posted by savage9scorpio
I have a rebuilt 400 small block. the problem I think I am about to run inti is trying to put this motor on the powerglide trans that I have. I believe the flexplate may b different as well as if the bellhousing will match or if I need to change it. can some help out with some info on this swap and matching to this trans.
The Powerglide will fit the SBC 400 engine you have. The flexplate's torque converter bolt pattern may or may not work w/the Powerglide torque converter, so check it to see. The torque converter has to be for the Powerglide unless the PG has an aftermarket TH350/TH400 spline input installed.