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Obviously i go beyond the regular polish job. What a stupid question. But as you've asked. I have the ports chromed. Chroming costs a lot. Proper shine mate. Wait until you get it back. I will send you some shades. Don't want you getting blinded.What's so special about your heads?
I've always tried to use solder that was not too much larger than what I'm trying to measure but I hadn't considered twisting.One other thing, I usually use very thin solder, then double it up by spinning it. It's not as stiff as one thicker piece and doesn't spring back as bad either. A high compression motor will put a lot more pressure on a piston and bearing clearances than a spun piece of solder, by a lot.