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12-12-2004 08:21 PM #1
threaded hole in aluminum cylinder head
Hey fellas I was wondering if anyone knew what the 5/8" threaded hole on edelbrock or most SBC aluminum heads are for. The hole is on each head on the left hand side, right below where you mount you exhaust headers or manifolds. I just plugged mine with a pipe plug. Anybody know? I have attached a pic. The hole I'm talking about is the one that the arrows are NOT pointing to. to the left of the arrows.
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12-12-2004 08:33 PM #2
Water temp sending unitObjects in the mirror are losing






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I’m also late to this party. RIP John Boy
John Norton aka johnboy