[WANTED] Offy port o sonic 273/318
- Thread starter Syleng1
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It is a divided wall, low rise single plane.
The inside is similar to the mod man with a huge plenum area and short runners.
There was a single plane port o sonic on ebag a few months back but they were asking a ridiculous price for it. Good luck.
yes - I called Summit. Possibly end of October or November. Rough castings are coming from overseas (if things relax I was told.) they then get final machining here and then boxed. I don’t know if true but tech support / sales typically have been honest with me over the years.
Square.
Offenhauser Dual-Port 360* Intake ~ 'Was It A Gimmick'
Check this thread out about the intake shown above. It’s is not the one I am looking for. I want a “port o sonic” single plane. The Offy 360 is actually a different animal.
Check this thread out about the intake shown above. It’s is not the one I am looking for. I want a “port o sonic” single plane. The Offy 360 is actually a different animal.
Locomotion
Well-Known Member
The Offy Port-O-Sonic was a true single plane intake that was the hot set-up for a while for Mopar small block Super Stock racing with a Thermoquad carb. There weren't any other competitive, decent, small block race intakes at the time. It was modified with epoxy + "popsicle sticks" to even out the flow distribution with the spread bore TQ. This mod was apparently better than a modified LD340 in that application. Holley finally came out with their small block Strip Dominator which needed little, if any, mods to work with spread or square bore carbs & performed better to boot.
Todd Mckillop
HeavyMetal
I have one, I will get some pictures and get back with you...
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