| Re: Oldsmobile 455 heads G vs J [message #324361 is a reply to message #324288] |
Mon, 25 September 2017 18:01   |
dr.diesel
Messages: 85
Registered: April 2015
Location: The Haute, Indiana
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Carl S. wrote on Sat, 23 September 2017 23:15
If you look for a flow chart, there isn't much difference between the best flowing and the worst flowing Olds BB heads.
I've been debating on which head to use for my 4.5" stroked engine build. Have a set of Cs that came off the donor engine, the slightly larger intake runner hit might be positively offset by the Cs much better exhaust.
Still pondering, no luck finding either J or G locally.
77 Kingsley
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