i removed a 327 from a 63 truck and the motor mount perches that mount to the frame were in the rear holes in the frame? do some v8's use the front holes too. i am installing a 292 in mine and needed to get different ones for pass side. the perches that fit in the front holes are made a little different, they come foward a little and the bottom mount hole is closer to the frame. i am wondering if those front mounting perches you are talking about will fit the 292? how many different ones did chevrolet make for these trucks? just asking if anyone knows. thanks