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QUICK QUESTION - manifold bolts

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i dont remember right off, but i can tell you that fine thread is 20 and coarse is 13 TPI (threads per inch) in the half inch thread diameter.

mark
 
Got a sleeping baby in arms so can't check for sure but I believe it is 3/8-24.
 
And Morris wins the prize... 3/8 UNF (24 tpi) it is. I've abandoned the stock mani bolts and I'm using Home Depot 1.5" 3/8 UNF bolts to do my Cannon mani / headers conversion. Thanks for the info!

-D
 
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