Thread size on Cylinder for rocker cover bolts?
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Thread size on Cylinder for rocker cover bolts?
simple one today. What's the thread size for rocker cover bolts? Thanks in advance.
- thornebt
- Posts: 488
- Joined: Sun Apr 19, 2015 9:13 am
- Location: Somerset, UK
Re: Thread size on Cylinder for rocker cover bolts?
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.