The Ford Barn - View Single Post

supereal · 10-01-2021, 04:19 PM

At our shop we repair block cracks that don't involve the water jacket, such as the area in the valve pocket, by drilling and tapping a hole, and inserting a threaded plug, followed by some good sealer. If the crack is into the water jacket, or at the bottom of the bore, it is unlikely a repair will be successful. When we rebuild a flathead, we install hardened seats. This provides the best way to prevent future problems.

10-01-2021, 04:19 PM	#2
supereal Senior Member Join Date: Jul 2014 Location: Iowa Posts: 1,634	Re: Cracked C59A block... any repair ideas? At our shop we repair block cracks that don't involve the water jacket, such as the area in the valve pocket, by drilling and tapping a hole, and inserting a threaded plug, followed by some good sealer. If the crack is into the water jacket, or at the bottom of the bore, it is unlikely a repair will be successful. When we rebuild a flathead, we install hardened seats. This provides the best way to prevent future problems.