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01-07-2019, 12:48 PM
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| Eth Fiend   Join Date: May 2010 Location: Auburn Hills, MI
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|   Not Ranked : 0 score  The stock exhaust valves are pretty awesome, and in the 10 years I've been screwing with this platform I've maybe seen 3 instances of them failing. You have a lot of gunk buildup in that head, so a flake may have wedged itself in and it leaked over time and burnt. I'd expect other signs of failure on the other valve if the injector was screwed up. I'd probably just pick up a used head from a junkyard and rebuild it/milled flat.
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