90mm tb gasket with 80mm tb?

1slow95

Founding Member
May 16, 2002
1,797
3
48
ohio
Hey guys, I need a couple gaskets for my holley 80mm tb, and they're turning out to be kinda hard to find. I found some trick flow 90mm gaskets on summit, will those work? I'm using the UPR egr delete plates, so I don't need the coolant passages to line up.
 
Low-5.0 said:
Hey guys, I need a couple gaskets for my holley 80mm tb, and they're turning out to be kinda hard to find. I found some trick flow 90mm gaskets on summit, will those work? I'm using the UPR egr delete plates, so I don't need the coolant passages to line up.

I would think the 90mm gasket should work fine, just as long as there is enough gasket material around the outer edge of the TB. You could throw some RTV sealant on there to be safe. Holley doesn't make a gasket to match their TB? That seems odd. The opening on the gasket that came with my 70mm BBK TB was actually a little larger than the opening on the TB (maybe it was to fit 70mm and 75mm :shrug: ). But it works just fine. Good luck
 
Thanks. Holley does make a gasket for the 80mm, but I have to get it straight from them. I just made my own gaskets, but if these don't work out I'll just go with the 90mm gaskets.