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Bored&Stroked · 08-21-2024, 12:14 PM

Does the crack go through into the stud hole? If so, then things will get a lot more difficult as the stud-hole would need to be sleeved with aluminum to seal it.

Another option is to use a 'water glass' type product (Moroso Ceramic Seal is what I use). If you're just weeping water out of the current crack, this will seal it. Pay attention to the directions!

If it was mine, I'd probably have it welded and then vapor blasted or light glass beaded to try to get the whole surface to look pretty much the same.

If you weld on it, it can warp the head deck surface as well - so then it may need to be surfaced. Just something to note . . .

08-21-2024, 12:14 PM	#9
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,910	Re: 1935 Ford flathead V8 aluminum heads Does the crack go through into the stud hole? If so, then things will get a lot more difficult as the stud-hole would need to be sleeved with aluminum to seal it. Another option is to use a 'water glass' type product (Moroso Ceramic Seal is what I use). If you're just weeping water out of the current crack, this will seal it. Pay attention to the directions! If it was mine, I'd probably have it welded and then vapor blasted or light glass beaded to try to get the whole surface to look pretty much the same. If you weld on it, it can warp the head deck surface as well - so then it may need to be surfaced. Just something to note . . .