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AutoMD Member

AutoMD ... 4/13/2014

1986 Chevrolet C70 C7D042 8 Cyl 6.00L

Engine

What is the size and thread of the plugs I need?

I want to remove the manifold and plumbing for the EGR piping going into the exhaust manifold. Can you tell me the size and thread of the plugs I need to plug the holes. 366 big block

1 Answer


HouseCallAuto

HouseCallAuto 4/13/2014

Nobody is going to just know that. We remove what we want to plug up and identify the thread pitch when the old part is removed. It is likely that it is pipe thread, but what size nobody will know unless they did this exact job recently and can remember the size. there is no book to look it up in.

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