They determined the 440 with a 4-speed would be too much for the little A-Body's rear end, especially the small bolt pattern! They were not willing to change the bolt pattern and brakes at the time. I had a 68 GTS 383 4-speed car that was converted to a 440, of course all the linkages for the clutch were fine.
Last edited by Rhinodart; 01/08/1612:06 PM.
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
They were not willing to change the bolt pattern and brakes at the time. I had a 68 GTS 383 4-speed car that was converted to a 440, of course all the linkages for the clutch were fine. 
