Bent push rod
Finally got the truck running after the blown head gasket. The culprit was a stretch stock head bolt at the #5 cylinder. I had the heads done including reseating the valves, new valve guides, new injector cups, re-used the stock valves and push rods, Comp 910 springs, and I believe heads were decked also. The heads checked out with no cracks or damage, and everything pressure tested good. Installed ARP's and also did a bunch of other maintenance items while the motor was out.
Got it running on Friday and by Monday, I had a bent push rod. At first I was running with the chip and new PCM
in, but I took it out on Sunday because of some tuning issues so since Sunday it has been running with stock tuning on the stock PCM
Monday I drove to work and everything was good. I went to get lunch on Monday and before I got 1 mile away, I had a bent rod. Bent rod was the for the intake valve on the #5 cylinder. Coindidence, I don't know. Did not keep track of which push rods came out of which holes, and because of that it is highly unlikely (but not impossible) that the pushrods that came out of the #5holes went back into the #5 holes.
The push rod was replaced and everything is fine now, but my question is this: Is there something I should be looking for that may of been a result of the blown head gasket that could bend push rods? I know I went to stiffer springs, but there are many many people who are running stock push rods with Comp 910 springs with no issues. If it happens again, and it is in a different location, I will definitely consider new push rods as maybe the stockers are not up to the task of working with the stiffer springs. If it happens at the #5 cylinder again, what, other than possibly the valve guides, should I look for?
99.5 F250 Lariat : 6" lift on 37" Toyo MT's, DP Tunes, Built Transmission, Airbags, AIH Delete, 38R, Banks Big Head, CCV Mod, Sinister Regulated Return, IH bellowed up pipes, AFE Stage II, ISSPro Performax gauges, Scan Gauge, Casserly Stage I's, T-500 HPOP, Swamp's IDM