I just baught a set of EMI Thunder exhaust, for My '81 SBC Mercruiser 260. I am converting fron log style exhaust.
Can I plumb the exhaust using my existing tstat housing, pictured below? if so does any one have a diagram for doing so, i think that some of the niples would have to be caped of.
If not, can any one tell Me which Tstat housing I would need and the proper plumbing diagram?
If I can use My existing housing would be great. I would prefer not to have to spend $200 for another Tstat housing. Thanks for any help.....Hal

you you can but you have to use 2 y adaptors but by the time your done buying water hose and the adaptord your better off buying a sierra 2 port housing..
http://www.ebay.com/itm/STAINLESS-ST...ht_2866wt_1196

or if your on a budget..


http://www.ebay.com/itm/Mercruiser-T...#ht_500wt_1204

you could put 2 rubber caps on back nipples that went to rear risers. changing t-stat housing requires supply hose change also.