Does anyone know what thread size is on the O2 sensor bung on V&H BSS? Its not a pipe thread. I may be a bolt thread. When installing the PClll you don't need the sensors so I thought I would leave them on the old pipes in case I ever had to put them back on. Wanted something to plug the holes with that will look clean. Any ideas?

 

I bought a thread chaser and it was 18mm.
see here: https://www.hdforums.com/m_818465/tm.htm

 

Yup, metric. M18 x 1.5. Plugs are readily available, here's some from Eastern Performance Cycles.
http://cgi.ebay.com/ebaymotors/BRAND...QQcmdZViewItem

 

This is one of the best search-enabled sites.&nbsp\\; Glad I didn't have to post a new thread. &nbsp\\;&nbsp\\; Murph, you're up near Greenville, right?

 

YOU CAN BUY THEM AT MOST AUTO PARTS STORES AS DRAIN PLUGS... THEY ARE NOT CHROME THOUGH...

 

Like Josh said... i got mine at Advance Auto Parts for like $3 a piece. They're not chrome though so they'll tarnish when you put some major heat on them. But then again...do you really care and who looks at them there anyways? The one nice thing about buying them at the auto parts store is that its not an internal hex like the plugs in the J&P catalog. It's an external (i.e. male) hex that is big and beefy and if you ever really needed to put some torque on it you could without stripping it out.

 

Yeah Longhair, just south of Greenville.

 

You could leave the O2 sensors in there. Those are free. Just leave the pigtails unplugged.

 

m18 1.5 it is. I got some at O 'Reilly. Autozone did not have that size. Check the oil drain plug section.

 

Thank god for this thread! This damn PCIII is killin me! Ha Ha Ha