After removing the head, I was disappointed to find the head gasket in perfect condition.
I have 3 cracked cylinders.
I know this happened back on July 13th, because my compression has always been perfect and I have never lost a drop of coolant. It likely occurred during some high-boost pulls on the local roads. I let the car idle for about 10 minutes before shutting it off, so it was not a matter of turning the car off too quickly. But it was at night, so I did not notice any smoke until the next day.
No overheating issues either... Everything suggests that this was a moment of over boost. I'm not blaming this on anyone, any parts, or the tune. It's a risk that we all take by modifying.
I also discovered that all five pistons have dents from impacting the valves. Again, my compression has been fine, so it's likely that this was remaining damage from when the previous owner bent and replaced the valves.
While I have another engine I could swap in, I am NOT putting a stock block back into my car. I have been dissatisfied with this maxed out K04 and FWD platform for a while, I had plans for the hybrid turbo and the AWD swap. But the amount of time, money, and effort to get this car back to where it previously was, is more than I’m willing to invest. Especially since I would still be facing a long to-do list to make this car something I would actually be content with it.
After thinking and praying for guidance, this is the end of my C30.
To the Volvo community, this might seem illogical when I already have the parts. But I still have the V50 for M66 AWD fun. With the seemingly constant maintenance that all my cars now require, I need something lower mileage. Plus, I'll never improve as a driver if I keep myself limited to this platform.
I'm going to be looking at some newer cars this week. Requirements are 250+ whp stock, RWD, manual, 2 doors, and with an engine that's actually meant for mountain runs and track days.
Do NOT message me about a part-out or call dibs on any parts.
I may sell the entire car with my spare engine, if anyone wants to rebuild it.
I may swap out some parts with the V50 and then take my time with parting it out.
I may revert it to stock-ish and replace the engine; keep it as a daily or sell it...
It could always have ended worse! It has been a fun run and even these last few days have been a great learning experience. Huge thanks to SwedeSpeed and C30Crew for the wisdom, inspiration, and friendships.