I have a 56 special and am considering mounting the body on a later model frame with a big block nail head or a 455. A mid 70 riviera has the same wheel base, 122 but the tread width is 4.4" front, and 5" rear WIDER on the Riv. than on my special. Any advice? Thanks!!!

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Road Hog

Yes, 2dr Chevy Caprice, very close in rack and wheelbase. Now you just need to fab up mounts for the nailhead, and a crossmember for the toploader (well hopefully a 4spd anyways.

Wish I could assist; I just concluded that I should just stay with my 322 after building a 350 chev engine, getting a beretta front end, a TH trannie, and a Monte carlo rear end. The spacing at the front end just seemed to get too complicated. At this stasge, I take it that a Caprice chassis might match up without too much cutting? Sorry for jumping on the question; wish I'd seen this a long time ago.

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Moondoggie

go with Jagquar front and rear. you get 4 wheel independent suspension, 4 piston discs on the front and dual on the rear. Its not that hard to do. I put it under my 57 and its great, also lets you drop the car on the ground if you build the rear crossmember adjustable