Thread: 8BA tooling.
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Old 03-16-2018, 07:24 AM   #83
Yoyodyne
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Join Date: Nov 2010
Location: Lancaster PA
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Default Re: 8BA tooling.

I've pondered how to build a big bore engine with water pump heads. If Tod would sell a block with all the bosses in the right place but the head stud pattern drilled for 24 stud, or perhaps undrilled, you could drill the extra studs for 21 stud heads slightly offset away from the cylinders. I was poking around under the deck of a late block and wishing for some material to appear right there, that would have solved my block availability problem.
I think there's enough metal in the iron heads to relocate those holes by stepped sleeves. Aluminum 21 stud heads could maybe be ordered without those holes drilled. I wonder why Ford added studs instead of just relocating them, anyone here have sealing problems with 21 stud heads in that area?
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