Hello group, Another cry for help. I finally got the reworked heads and new pushrod back from the machine shop, and mounted them and set the valve lash on the intake and exhaust. Since I first found the problem by taking a compression test and getting a big fat zero on cylinder #2, I figured it would be a good idea to check the compression once I put the heads on (before reassembling everything else). I got quite a surprise. All of the cylinders are within 5 lbs of each other, which is to be expected, but now all the readings for all the cylinders are down around 110 lbs each! I had readings in the 135 range before I took things apart to have the zero reading fixed. What gives? I'm using the same compression tester as before. Do I have the wrong head gaskets? Are they too thick, thus dropping compression ratio? Maybe the battery is just weaker than when I started, so the motor is turning more slowly? Maybe there's no oil around the rings since the motor has been apart for 2 months? Any and all comments appreciated. I don't want to put the whole thing back together until I come up with a satisfactory explanation for this. John ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/