I have searched through old threads only to be more confused. I have a 1980 El Camino I will be swapping out the small block for a big block in. I did not know there was a difference between sbc and bbc frame mounts. When I did my Cutlass with the bbc after taking out the sbc I never changed them but the engine did sit kinda high. It would be great if the engine could sit lower since space is at a premium but it says it moves the engine to the passenger side. I have super comp headers and in my '84 Cutlass I had to cut the end of one of the A-arm bolts flush with the nut for them to fit. If moved over to the passenger side more they probably won't fit. My big thing is getting the engine to sit as low as possible in my Elky. I really need to hear from the G-body guys who have made this swap and what worked best for them. My car is really nice so I want to try and keep it all under the hood. (Is it possible?) I feel I didn't get the most accurate information reading some of the old threads. Can I please get some clarification on this from the experts?