February 11, 2007

I have a 97 chevy pickup with a 350 that sprung a coolant leak out of the intake. This model can remove lower only but now that I have it off I want to clean it(170,000 miles)and gasket set was not much more for both. I am having trouble getting the upper off. I have all the bolts off and it moves a little but will not come off. seems to be stuck in the middle.Am I missing something. Also what can I clean the manifolds with and do I need to use something different on the upper as it is plastic.The leak was in the front left and I also wonder if I should pull the heads while I am this far. Hate to get it back together and then later have a head leak. Thanks