Re: LM7 5.3L to F-body oil pan
Yes, that is the spot, you can compare it to the pic I posted earlier. The hole, although probably metric is really close to 3/8, so a bit that size should work. The O ring on the dipstick will seal it. Drill with a smaller bit first and work your way up, don't start out with a 3/8 or you probably wont have very good results.
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