I have a 12 gt500 with a built engine manley rods pistons extreme duty valves timing components upgrade vmp gen 2 67 tb.
Anyhow about 18000 miles after rebuild driving the other day did a wot and then had a skip. cel flashing but no codes read. Drove it home still no code. Started it up again and #4 miss fire. Pulled the plug and it was damaged and closed gap. Took a bore scope and what looks like little marks all over the piston. The plug is intact with no missing parts. Edges of the piston are all there and bore looks good. Something went threw the engine and I cant figure out from where. Did a compression test and its with in 5 lbs of other cylinders.
What do you guys think? Drive it and see what happens? I have put another 30 miles on it and a few wots and all seems to be fine with great power.
Nervous to drive but would like others thoughts.
Thanks
Alan
Anyhow about 18000 miles after rebuild driving the other day did a wot and then had a skip. cel flashing but no codes read. Drove it home still no code. Started it up again and #4 miss fire. Pulled the plug and it was damaged and closed gap. Took a bore scope and what looks like little marks all over the piston. The plug is intact with no missing parts. Edges of the piston are all there and bore looks good. Something went threw the engine and I cant figure out from where. Did a compression test and its with in 5 lbs of other cylinders.
What do you guys think? Drive it and see what happens? I have put another 30 miles on it and a few wots and all seems to be fine with great power.
Nervous to drive but would like others thoughts.
Thanks
Alan