Thanks for the link...

Check out the classifieds.

http://www.offshoreonly.com/classifi...o38189-en.html

Very nice, looks good.

Take the standard double curved risers and drill them out and weld in a 18MM stainless bung you can buy from any Napa house. They must be welded inside and outside to seal the water jacket passage.
I also would not recommend running the O2's continuously in place as the steam and water vapor will eventually turn them to rusty toast. When you buy the bungs, buy the associated stainless 18MM plug and remove the O2;'s after you've done your measurements and recalibrations.

Best Regards,
Ray @ Raylar

Fixx
 

nice pieces but the 02 need to be between 10 and 2 o'clocl position so the water can drain if they ever get wet..

I know this is somewhat of an old thread but I've been running the WAGs spacer for three years now with no issues. I run the AFR gauge full time (gauge mounted in boat). Spacer works fine and O2 sensor still works. No rust etc....