I'll probably return it, but I'll have to eat the shipping. I have 3 other lowers. I'll probably just get one sand blasted and powder coated with the upper intake manifold.I wouldn't accept that as a new factory part. I would have bought a used one cheap and had it glass beaded and extends honed for way less then that now .
But im a frugel old focker.
Yes raw casting. It's not really raised much.I’d have to lay a gasket across that to check, but if it does seat on that then yes that will leak.
Is it the raw casting and a raised surface? I’d be tempted to toss that on a lathe and even it out or take it to a machine shop.
However I’d think OE lowers are pretty common. I’ve seen some clean ones for sale here and there.
I just purchased a nos lower intake manifold. I noticed that the mating surface is different in one area. It's not smooth. Is this going to cause a sealing problem?
This is the numbers I found.
If he tempted to talk to a machine show and see what they would want to just take off that raw portion and not face the rest of it.
Don't think that is the right approach.
Being as the raw portion appears to be a void, and not a raised section, any "cleaning up" of that area is just gonna make the void larger.... making things worse by further decreasing the gasket-to-manifold sealing interface, imo.
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