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Joined: Jun 2025
Posts: 12
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Member
Joined: Jun 2025
Posts: 12 |
Freshly rebuilt 350. Was getting ready to attempt startup and when filled with coolant she started leaking out of this threaded fitting. No coolant evident in oil. What is this hole for from the casting?
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Joined: Mar 2012
Posts: 1,541 Likes: 41
Member
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Member
Joined: Mar 2012
Posts: 1,541 Likes: 41 |
That's just basically a drain hole to drain coolant from the block. There is one on each side and they both should have a pipe plug in them.
Pontiac power
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Joined: Jun 2025
Posts: 12
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Member
Joined: Jun 2025
Posts: 12 |
Thanks! Yep- scared the crap out of me. Cleaned up the threads and the plug went right in.
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