QUOTE(Highland @ Jan 13 2014, 10:37 PM)
I soaked my pushrod tubes in this stuff from Harbor Freight and it seem to remove the rust. I tried it in below 65 degree weather and didn't work very well until we got some warm SoCal winter weather.
http://www.harborfreight.com/1-quart-evapo...mover-96433.htmI then painted them with VHT high temp paint and baked them out in an old toaster oven.
Figured the rust remover was worth the try for $9 with a 25% coupon before spending $80+ on new tubes.
Engine is far from finished, so can't tell you how they're holding up.
I had my large tins and valve covers powder coated just cause they needed sand blasting which would have cost as much as the powder coating which includes the clean-up. The shop I brought them to had a $75 minimum charge so I wish I were more organized and brought them more pieces.
I think engine paint is all that's needed on these tubes, it's not as hot as exhaust parts. I do like the way you think. I made the mistake of having parts sandblasted months before they were powder coated, forget that let the shop do it all at once which is what that want to make sure it's blasted to the right texture and is clean of grease and rust.
I may just hit the tubes with my wire wheel and see how they look. If there is some rust left I may treat them with my Ospro and let them be.
Besides new gaskets is there a teflon paste or some other product that should be applied before I reinstall the tubes?
I was thinking about having the heads redone but I think that new heads is actually the way to go. Don't really want to pay for that right now so i'll just run it for a while and overhaul it in the future if I still have it. More fun for me