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Discussion Starter · #1 ·
Been measuring my steel bellhousing for run out while mounted up to my 302.

With the standard alignment pins is is 0.007" misaligned (0.015 total indicated runouut). This puts me just into the range of the first offset ground alignment dowels.

Just for fun, I put the factory bellhousing that FoMoCo shipped with this motor when it left the Mustang factory: It's also 0.007" or 0.015" TIR but in a ~160 degrees different direction.

Still ordering the special dowels to make it "right" since it's my work here, but it makes me wonder, What is the normal range of variation on the production engine/bellhousing combos?
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