Thats not a street engine, those ring gaps and clearances are setup for a race engine. Its a bit much for a street car.
Not drag only but the ring gaps and ptw are bigger than what I would put in a street engine. It was good on drews car.
All I was really after was a solid platform that can take any abuse I was gonna give it. I probably jumped the gun a little on getting the block from Drew, but I wanted a built short block and he had one. It's running fine so far and I'm gonna deal with it, but I think I'm gonna build my old SB to suit me a little better. Still need to get it tuned though, probably sometime next week.
No, if you have never had someone tell you not to use any abrasives such as that, how could you know. I was not trying insult you, it's just when I see abrasive marks like that I know the problems they will create.
I talked with the SOG techs and asked them what they used to clean off the heads when doing a HG job or whatever. 1 guy said he uses a little 1.5" thin green disc that I would say is more abrasive than what I used. He said even the Subaru Training Center instructors recommended to use the bristle pad I used. I realize that we're dealing with higher power levels than what Subaru has designed and intended these motors to for, and that's all the more reason for everything to be more precise. Only time will tell...
When putting heads to a block using the steel head gasket you want the smoothest and straightest surface possible. When you torque the head down the gasket will only squish so much and if there is just the tiniest path for pressure to push oil or water out, well there's your failed head gasket.
You should be fine, in the future use a good quality scraper that is free from burrs and nicks to retain the smooth finish of the part. MLS gaskets are not forgiving when it comes to imperfections in the mating surface.