Well in an effort to find a knocking sound in my engine I found a bigger problem. The block is cracked on the number 4 main. I need to have it together by June 30th because I need my vehicle off my dad's land(he is closing his business).

I don't daily drive it and intend to use the vehicle for offroad use someday...

Here are my two options:

1) Drill under the crack to try to stop it, and lock'n stitch the block. Extend my girdle to number 5 main. Drive it until it starts to leak coolant into oil or vice versa and drop in a 4bt when it fails. Any ideas how long it may last?

2) Try to get my old 6.2 block machined with about one week left to build and install it. Tie the girdle into number 5 main and hope it never cracks. It doesn't look cracked and it should last if it isn't cracked(I hope). It does have rust in the cylinders, but I hope it only needs to be bored over .020" so I can use my pistons from the new cracked engine.

Any suggestion?

-Thanks,
Kyle