I have finished the head job on the 300D and today was the first day I have driven any distance so I will pull the radiator cap around lunch today to see if there is still any pressure. I did drive around town day before yesterday (about 10-15 miles) and when I returned home removed the radiator cap and there was not any pressure to speak of although the engine was up to operating temperature based on the temp gauge. The temperature did not get above around 90-95 dC on the freeway run into work this morning (75 mph). Car runs great although I do have some fuel leakage issues that are causing a little idle roughness during the first start up in the mornings. I will get these issues resolved this weekend.

__________________
Jim