Hey Fellow Tuners,
My name is Will, I'm mainly a Lurker/Researcher of these forums, so I'll get down to business. I'm trying to piece my build together and I would like some advise on whether or not to upgrade my valvetrain...Here's my story--Back in 07' my 7 bolt spun a bearing, so I decided to start a 450-500 hp build for my gsx. Over the years of taking parts off, buying upgrades, putting the project on hold for 2 years since I was unemployed, and now finally being able to start back up on this project, I have hit a bit of a snag now that I'm again able to buy parts.
My plan was to use a 6 bolt block with my 7 bolt's head. It has seen 2 over heats, one from a broken water pump and the other to a broken harmonic balancer, causing the belts to snap when I wasn't anywhere near my home..
It was fixed via valve jobs and 1 deck resurfacing. Now that on this last occasion of my spun bearing, I pulled the head to take it apart for when I have it sent out for a port&polish, stud hole drilling and the oil port mod I happened to notice that there was oil in my 4th spark plug socket, and my valves, although not bent by the looks of it, have some unusual wear towards the top near the retaining locks. Here are some pictures to show what I'm talking about.
This is when I pulling the head off way back when It blew.
here's after I took the valves out. Notice the break in the metal grain on the valve in the last pic..It's only on my intakes not on the exhaust.
I honestly don't have the technical expertise to diagnose my valves, or have the means to take out my guides.. If someone would be so kind to gimme a proper diagnosis, that would be great. If it comes down to it, I don't mind upgrading to some oversized valves, new guides, seals, etc, but if I don't have to and still meet my power goals, then I'll just let well enough alone. If more pictures are required just make a request and I'll snap some. If you need any additional information I will me more than happy to supply it.