donnie1956
Active member
Finally got most of the all bugs worked out on my LS swap except it overheats. When cruising around 60 mph or so it would run around 200 or so. If I drove a little harder the temp would run up to 240 and keep climbing until I let off and backed of to 60 mph.
Made sure all the hoses were in good working condition. Installed a new radiator cap. New alum radiator since swap, Both electric fans work and turn on when they should, made sure all the foam seals were in place and the lower air spoiler is installed.
Finally removed the t stat and the temp dropped to less than 190 and with aggressive driving it will climb to 220. Currently running on water and no T stat.
Something still doesn't seem right with my set up, Ran across this forum tonight and discussions about overheating with turbo's, but still some good information about how LS water pumps operate differently than SBC or BBC.
http://www.yellowbullet.com/forum/showthread.php?t=621363
This got me thinking that is it possible my vintage air system with the heater bypass valve closing adding to overheating problem? Going to install a new t stat but hesitant to dump more antifreeze in until I get the problem figured out.
Made sure all the hoses were in good working condition. Installed a new radiator cap. New alum radiator since swap, Both electric fans work and turn on when they should, made sure all the foam seals were in place and the lower air spoiler is installed.
Finally removed the t stat and the temp dropped to less than 190 and with aggressive driving it will climb to 220. Currently running on water and no T stat.
Something still doesn't seem right with my set up, Ran across this forum tonight and discussions about overheating with turbo's, but still some good information about how LS water pumps operate differently than SBC or BBC.
http://www.yellowbullet.com/forum/showthread.php?t=621363
This got me thinking that is it possible my vintage air system with the heater bypass valve closing adding to overheating problem? Going to install a new t stat but hesitant to dump more antifreeze in until I get the problem figured out.