It's a pretty hard turn on the intake I'm working on too. I was wondering about smoothing it out.
Generally, I'm feeling ok about the port clean up work on this intake for my first time doing this. I left everything at 80grit. Seems it's better to leave the finish rougher than smoother, but I'm not sure what the standard is. The pics make it look more uneven than it is for some reason. You can see a couple spots where I caught the grinder on the gasket surface.
There are casting seams in the ports I'm wondering about. They push the port wall very close to, or right on top of, the gasket. I was wondering if it's worth the trouble of leveling them out with some epoxy.
I think I've taken the top end of the manifold about as far as I can with a grinder. If I wanted to cut it back to a straight divider, I'd need to take it to machine shop to be milled out.
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Ken
'68 GTO - 464 - Ram Air II heads - 236/242 roller - 9.5” TSP converter - Moser 3.55 Truetrac (
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'95 Comp T/A #6 M6 - bone stock (
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