I hope someone here can help me answer a question. After many years, I'm getting back into cars and have been offered a HEMI block for my project. It has a crack in the middle main web about 3" long. I have checked into some metal shops that weld professionally and can do cast iron (pre heat, weld, cool down etc.). My question is, has anyone done this, and would it even hold in this high stress area? The horsepower levels would be under 500. Thanks,
Henry

Just my opinion, but I wouldn't buy a stock block cracked in that area.

It would not be a good purchase.

My

You may want to check out a company called Lock-N-Stitch, the kits are reasonable, or diesel shops do it for you. Cummins diesels are fixed this way a lot. I am not recommending or condemning, just making you aware of another method to fix a crack in cast iron. rbd

The block would have to be really cheap (almost free) to justify messing with it at all IMO.

Even with a free block , you are going to have a decent chunk tied up in the rest of the motor that could potentially be dameged if something bad happened.
I'd say pass on it.

I agree with all of the above.....Make a great door stop.

If you want to chance it get ahold of Mike at www.rocketresto.com, he tells me there's a guy he knows in Western Washington who's a magician with cast iron welding.

Personally I don't have allot of faith in any type of cast iron welding in a main web area.