Ya, I know what your saying Vern. For that kind of $$$ have it BLASTED. Be sure to plug up the cyl. walls, would hate to have them pitted ! Blow out all the holes & have it hot tanked or at least, use a high pressure hose with soap (car wash) rince it very well & BLOW... clean it again. Dust & the blasting material will be everywhere. Spray walls with WD-40 or engine
oil to keep it from getting surface rust, it will come on very fast. Mask off head surface & bottom end (unless your painting the pan also) ect... and you'll be a painting my friend. Have it very clean before assembly.