Finished up the GTP this morning, I was going to finish when it got warmer out side but since my DD Buick century needs head gaskets I have to get the GTP going to commute to work. Car runs amazing but after about 3-4 mins of running the temp needle just climbs like its running from something. All hoses are warm and the cooling system has pressure, system is bled, I even pulled the thermostat (even tho it was brand new) and yet im still having the same issue. The intake manifold is primed and filled to the top to the thermostat housing. I thought I knew everything about these 3.8's after a lot of servicing and an engine swap but yet im stumped on this cooling problem.
Any help is greatly appreciated.
Thanks in advance
Brandon
