LS1TECH - Camaro and Firebird Forum Discussion

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- Generation III External Engine (https://ls1tech.com/forums/generation-iii-external-engine-6/)

- - O2 sensor size? (https://ls1tech.com/forums/generation-iii-external-engine/94193-o2-sensor-size.html)

cdn99ss

08-17-2003 10:47 AM

O2 sensor size?

I am in the process of installing MAC headers and ORY on my 99 SS. The ORY comes with bungs installed for the after cat O2s. I plan on eventually using them when I have some Random cats welding in to meet emmissions. For now, I have some O2 sims and just want to plug these openings. What is the size and thread type for the O2 fittings? Any suggestions?

Dave Carney

08-17-2003 11:17 AM

Re: O2 sensor size?

standard size and thread pitch, 18mm

Plugs available from jegs, $7.99 each

http://www.jegs.com/cgi-bin/ncommerc...mp;prmenbr=361

cdn99ss

08-17-2003 11:46 AM

Re: O2 sensor size?

Thanks for help!

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