Thread: 1970 Ram Air IV vs. 1971,72 455 H.O.
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  #73  
Old 12-15-2013, 02:02 PM
transam1972 transam1972 is offline
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Join Date: May 2012
Posts: 1,812
Default Pontiac block
I really need this answered...is the Pontiac block closer in size to a Chevrolet 350 or closer to a Chevrolet,Oldsmobile,Buick 455?...this thread has really increased my appreciation of the 455 H.O. and of course all of the roundports

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