Cracked Block

[carl hinkson]

Originally Posted by BTR69

Cracked 454 block from water jacket running toward lifter valley. Repairable? If so, would it be worth the expense? It's a 98 from a 3500 HD dually. If it matters, it's an L29 option. I'm under the impression the heads flow very good and would be good to keep. Hopefully the picture shows a good image of the damage.

I have repaired a lot of cracked blocks in the lifter galleys but have never seen one crank in that area. Having two head bolts holes close by makes for a high stress area. That one is a tough call.

I have always used the Lock-N-Stitch method with real good results. Welding the crack once the weld cools it will just crack again.