Using 1973 frame side motor mounts in 1972 frame for BBC swap? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

D-n-Tyke · Today, 01:04 AM

We are thinking about swapping out the SBC for a BBC in the 1972 C20 my son is building. We have a complete 1974 C10 crossmember we are going to swap in to convert it to 5-lug. Being as the 1972 is a one year only motor frame mount I am wondering what issue we would run in to if we used the frame mounts that came with the 74 crossmember. Has anyone done a BBC using 73-87 frame mounts? Any and all advice is appreciated.

Today, 01:04 AM	#1
D-n-Tyke Registered User Join Date: Aug 2016 Location: El Cajon, CA Posts: 301	Using 1973 frame side motor mounts in 1972 frame for BBC swap? We are thinking about swapping out the SBC for a BBC in the 1972 C20 my son is building. We have a complete 1974 C10 crossmember we are going to swap in to convert it to 5-lug. Being as the 1972 is a one year only motor frame mount I am wondering what issue we would run in to if we used the frame mounts that came with the 74 crossmember. Has anyone done a BBC using 73-87 frame mounts? Any and all advice is appreciated. Last edited by D-n-Tyke; Today at 02:31 AM.



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