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Offenhauser dual port intake
Posted: Fri Jul 28, 2023 1:33 pm
by BigBlockTrucks
Has anyone had experience with one of these on a 383?
Re: Offenhauser dual port intake
Posted: Fri Jul 28, 2023 9:16 pm
by nutz
can you post a pic
sounds like what i had on my amc 390
Re: Offenhauser dual port intake
Posted: Sat Jul 29, 2023 5:57 am
by BigBlockTrucks
I haven’t been able to post pics yet.
The outlet ports are split top to bottom. It’s a 4 hole split plenum and the primaries have a separate path to the outlet than the secondaries.
I have heard they were made during the gas crunch.
Re: Offenhauser dual port intake
Posted: Sat Jul 29, 2023 4:25 pm
by BigBlockTrucks
After some research it turns out that offy made these for mopars amc ford and others. Even some for inline 6’s
Any experiences others have had, I would like to hear about.
If they made that many,I’m sure someone here has had one.
Re: Offenhauser dual port intake
Posted: Sat Jul 29, 2023 8:00 pm
by nutz
yeah thats the one i had on my 69 amx 390
seamed to work ok had good low end power
think it would work best with a square bore carb ....been a long time but think i was running a carter
i could see it lacking in top end ,so would want to run a mild cam
and i think if you stay out of the 4bbl it would improve intake swirl and improve fuel economy (it was on the car when i bought it so can't say it was better