You would be surprised how many tractors have welded heads. I would use the piece of metal and stainless rod like another poster suggested. You can grind off high spots where it will never show. Also if you need boring but not pistons have it sleeved like some others suggested. Normally "A" heads freeze crack but not blocks. Usually shops have them magnafluxed for cracks but the dye will work since you have access to it.
Re: Unstyled A project in reply to 41B-boy, 03-04-2014 20:43:02
What I have seen done in a shop that repaired broken crankshafts for factory stamping presses (not engine crankshafts) they sprayed red dye on then a white dye. I don't really remember the sequence and I could have the colors reversed but they heated the area with a torch and the red dye showed the crack. Maybe they heated it first? They ground out the crack and welded the shaft and reground it. It's been years ago that I saw it done.
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