so, i had a thought with this water circulation thing. what about blocking off that port on the back of the head that goes to the heater. you could drill/tap and insert a nipple to accept a 5/8 heater line. you already got one heater line coming off the water pump. what about running a second one up to the tstat. it would be just oposite of the temp sending unit. that would get you good water circulation, and your heater would still work. my 97 mountaineer with 5.0L is done that way. or maybe thats just a bypass, i forget, anyway,it has a 5/8 line coming off next to the t-stat. dave stohler www.picasaweb.google.com/das24rules _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com