Too much boost....she is smoking bad!
#22
Well, i took the motor apart and the verdict is in.... a guide was starting to drop/move around. The head had been repaired (before i bought them) in the guide and chamber area on #7 and it looks like the repair didn't hold. The shortblock looks great with no issues. I really didn't think it was going to be the heads.....i would have preferred to just buy some new heads and keep my 370" but oh well.... The good news is that i have the new 408 installed and it is running great! The extra stroke makes a big difference on torque down low and really spools the turbo's fast now. I will have to get the tune touched up a bit to make sure it is good under big boost but i will hopefully hit the track in the next month or so.