Intake coolant plug.
 

As I have a new custom intake manifold coming my way I was wondering if anyone knew what size plug is needed on the block for the line that runs to the intake manifold. I know it was brought up recently in "stuff I can remove now that I have MS" was the jist of the thread (included silly stuff that you can remove pre-ms like charcoal canister etc) i just can't seem to fin the thread.

in for answer.

5/16"

If it was me i would go ghetto and just use a short piece of hose with a screw/bolt in it. It will work just fine, if not better than any plug you could buy. Ive seen enough plugs/caps for stuff like that crack at the ends.

How the hell do you know stuff like that scott? Guess thats why your called braineack

cause i blocked all the coolant lines to my TB. ;)

Most of the little water fittings under the hood are 8mm, such as the one from the mixing manifold to the thermostat housing, the block to intake, etc. I have typically used 5/16" fuel hose for them- works out to 7.9mm. I'd expect that a 5/16" cap with an appropriate clamp would do the trick.

Brain, did you block the coolant to the manifold also?
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