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I need some 390 engine perches for my 1977 F250 CC 4x4. I bought some from a 1972 4x4 with 360 and thought everything was great but the frames seem to be quite different between the 2 trucks (didn't expect that actually). I've heard that I-6 frame mounts will work for 390's in 2wd trucks - anyone know if the I-6 perches from a 1977-79 4x4 will work for my application?
After doing some field research today I see that my problem is that the F250 frame (post-highboy) is what is different. Based on this then I think the best option would be an I-6 mount from a 77.5-79 F250 4x4.
This, I imagine, is about as rare and difficult to obtain as the 4x4 oil pan/pickup for the 360. Probably worse. This looks like it will be a "make it fit" operation.
If anyone has any experienced input I would appreciate it.