simple one today. What's the thread size for rocker cover bolts? Thanks in advance.
Re: Thread size on Cylinder for rocker cover bolts?
Posted: Tue Oct 18, 2016 11:00 pm
by thornebt
On my 1957 G80S the rocker box threads should be 5/16" BSF, 22TPI. However, a previous owner has helicoiled them as metric 8mm 1.25 pitch! Cheers. Bruce.