I have a 56 6100 that came with a 261 it mounted directly off the front with small tab mounts much like the factory V8 mounts and I have a 57 6400 with a 261 that is missing the mounts but defiantly use different mounts than the 56 the 57s must have bolted to the side at the very front. I don't know why the are different or what the mounts on the 57 would have looked like and I have sold the 56 motor with the mounts but they where defiantly different.
Last edited by HevyHauler; 03/08/2008 5:56 PM.
