Looking for exhaust gaskets that cover air injection (?) holes (318)
I have a 318 with 4027593 heads (with small holes under each exhaust port). I have these manifolds:
Which I think are 3870387-4 but it's hard to read, the 3's could be 8's or vice versa:
The back side covers the holes:
The gaskets I used (back in 1987) were these:
Now I know there's a couple schools of thought about manifold gaskets (they're ok, vs you don't need them). I'd like to use them, but when browsing through rockauto and plugging in different year cars (from '67 to '78) and looking at the 318 or 360 manifold gasket choices, I can't find any that look like these - with the extension that covers (or includes) the holes.
What year and car make/model would have had the above manifold and gaskets? I'm wondering what aftermarket P/N would those be, if they can still be had?
Edit: I know I can plug the holes, I'll get around to that eventually...
I have a 318 with 4027593 heads (with small holes under each exhaust port). I have these manifolds:
Which I think are 3870387-4 but it's hard to read, the 3's could be 8's or vice versa:
The back side covers the holes:
The gaskets I used (back in 1987) were these:
Now I know there's a couple schools of thought about manifold gaskets (they're ok, vs you don't need them). I'd like to use them, but when browsing through rockauto and plugging in different year cars (from '67 to '78) and looking at the 318 or 360 manifold gasket choices, I can't find any that look like these - with the extension that covers (or includes) the holes.
What year and car make/model would have had the above manifold and gaskets? I'm wondering what aftermarket P/N would those be, if they can still be had?
Edit: I know I can plug the holes, I'll get around to that eventually...