Quote:
Originally Posted by jamala00
So what are the signs that it's causing problems? I see OP has a pic, but is that "normal" on an LT1 or is that excessive and it's causing problems? Not a whole lot of info with his post... I've got just under 50k miles on mine. Couldn't tell you what the valves look like. Not having any issues with it though.
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That is normal for an LT1. If you do a search you’ll see more pictures of them. A long time ago when DI first came out the Valves would get excessively coked and cause issues like misfires. To this date I have not seen a single post here about someone’s LT1 engine having issues due to the valves having some caked oil on them. GM did a great job minimizing it and have made many more DI engines before introducing the technology to the small blocks. Their older engines didn’t have issues either. It was mainly German engines that gave DI a bad rap.