BBC threaded hole in block - what goes here?

**Lynn** · #1 03-30-2023, 11:10 PM

Thanks for showing. What are the other two holes for?

**67since67** · #2 03-30-2023, 11:14 PM

Chevelle Z-bar uses the hole near the bell housing. Early blocks don't have the center hole, so??

**scuncio** · #3 03-30-2023, 11:55 PM

Thanks guys! I didn’t realize the corvette had the z-bar pivot in a different location.

**WILMASBOYL78** · #4 03-31-2023, 02:03 PM

I have a 72 402 block in the shop with the same threaded hole, just checked it. It does not go thru to the water jacket...it has a solid bottom

Must be for mounting or attaching something

I'll take a look at one of the 1970 cars over the weekend and see if I can learn more.

-wilma

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