I'm switching my 350 Pontiac for a 455 and want to know if it's possible to reuse the manifolds from the 350 with duals already on it ? I can get some headers but don't really want headers and the headaches that come with them . I'm not racing with it so HP isn't all that important as long as won't damage engine .I have a 76 F/bird w/auto. Thanks
cast iron exhaust having all 6 bolts is not that big of deal.Some manifolds dont even have all 6.Headers are another issue.Tom
I'm sure they have all 6 . They're 6x4 of my 76 350p .I may end up with headers if I find some that I like . What size pipe can I get by with ? Also is there a way I can eliminate the heat riser as it's not connected anyway ? Thanks
What heads on the 455? Are all 6 exhaust holes in each head?
The heads I'm using are 6x4's from the 350p in the 76 bird now and I have true duals with 40 or 44 series flowmasters.I'm not drag racing with it so I don't need every bit of hp out of it . I'm a little concerned about putting headers on but if it would be a big plus I can . Just worried about leaks with headers .Thanks for the info