Thread: Engine experts........need your help again !

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I think you are right about the manifold surface not being totally flat, Pat. I put a metal level over it yesterday and had Dan put a feeler gauge in various spots along it's length. Surprisingly, it was pretty flat except the feeler gauge (.002) would slip in in other spots than where I thought the low spot would be. I thought it would be low up on number 1 and 3 port, but it was low back in the middle, near number 5-7.

I will try the sandpaper/board deal tonight and will pick up a long board sheet of sandpaper today.

What sealant do you like? I've never had an intake machined, can local shops generally do it correctly?

Don

If the machine shop can surface the deck of the block they can fly cut an intake manifold. The same cutter macnhine is used for both.