correct tap size for b20b head bolts?

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kaardis

New Member
anybody know offhand what the thread size is for head bolts on a b20b block? i need to clean up the threads on one of the holes just need to verify the size...
 
Heres the tap i got. In order to get down to the head bolt threads, i needed a long shaft tap or an extension, I got this off ebay from L & N enterprises. Awesome tap definitly worth paying for imho.
 

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  • Beautiful 11mm x 1.5mm slope tap.jpg
    Beautiful 11mm x 1.5mm slope tap.jpg
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