The Ford Barn - View Single Post - I found a crack in an odd place while pressure testing

30Murray · 08-18-2020, 10:44 PM

I had a very similar crack in an otherwise very solid block. Paid a lot to get it welded by a very proficient welder who heated it in a furnace first then slowly cooled it. I think he used high nickel SS rods. Weld was good but I then I found another big crack inside the exhaust port that couldn't be reached. That's what can happen when you get freeze cracks I guess. Sold the block cheap to a drag racer who was going to fill the water passage with cement. Expensive lesson learned on my first flathead.

08-18-2020, 10:44 PM	#5
30Murray Senior Member Join Date: Jun 2010 Location: Vancouver B.C. Posts: 111	Re: I found a crack in an odd place while pressure testing I had a very similar crack in an otherwise very solid block. Paid a lot to get it welded by a very proficient welder who heated it in a furnace first then slowly cooled it. I think he used high nickel SS rods. Weld was good but I then I found another big crack inside the exhaust port that couldn't be reached. That's what can happen when you get freeze cracks I guess. Sold the block cheap to a drag racer who was going to fill the water passage with cement. Expensive lesson learned on my first flathead.