While cleaning up my intake manifold today I noticed the threads for the coolant port near the distributor are basically non-existant. Then I remembered that fitting leaking 25 years ago (truck has been sitting for the last 20 years) and paying a shadetree mechanic to fix it with JB weld. I'd prefer a little more permanent solution this go-round. Does anyone have experience with this port leaking and using a helicoil? I'm assuming this is an NPT fitting and NPT helicoils exist.
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