I have the complete 455 from my 73 Riviera. That I want to swap into my 71 skylark. I assumed the Exhaust manifolds are different for a Skylark but perhaps they can work? I could not seam to find a listing of casting numbers for different body styles. Thx in advance Joe P.S. I know I need new frame pads shroud ect. but I did not want to go with headers and was unsure how many different types of 455 exhaust manifolds there are
