So today got the internals out to get a good look at what was going on. Here are some carnage pics for you guys:
#3 piston skirt:
#8 piston skirt:
So, it's somewhat of a relief that I've finally come to some sort of issue that was going on. It looks like what was clogged into the oil pickup tube was pieces of rear main seal. With some of the micro welding going on between the #3 piston and the cylinder walls it looks like overheating was obviously an issue. I brought the block and internals to my machinist, and he thinks we'll most likely have to re-bore and go .030 over this time around, don't think we can just hone the walls out. Obviously, I'll need new pistons as well. I was running Manley Platinum Series 18cc pistons, but am considering going to a set of Diamond pistons. With the new power goals of 800+, do you guys have any recommendation on what kind of piston I should be looking at? I think I'm going to run Total Seal AP rings this time around as well. Also, I'm shooting for 10:1 compression. With a non-pi block and TF heads, would it matter how I went about getting to 10:1? Meaning, if I run 18cc pistons with the TF 38cc heads, or vice versa, if I went with say a 15cc piston and the TF 44cc heads? Any input is appreciated. Thanks