So I have a cracked #53 block in my truck. I have found a number of sites that claim the crack can be repaired by stiching it. Sounds like a bad idea to me. What do you guys think about this? Maybe if the truck would never be modded. But I plan on making 500-600hp. Are 12 valve and 24 valve blocks compatible in any way? Would a motor out of a 02 work in my 99? Im just trying to save a few bucks. I have a complete 99 engine lined up for $1100. But it will need a rebuild costing me another $4000. I also found a complete engine out of a 02 with only 94,000 miles on it for $3200. I was told some engines have cam and crank sensors. While others only have a crank sensor. Can I save the cash and make the 02 engine work using parts from my current engine? Or should I spend the extra money and go with the same model year engine? I have alot more time than money for this project. Thanks in advance for any advice.

I picked up a complete engine for $1000. Going to pull it apart and see about making one good engine with the parts I have. I would do it myself. But the engine is just to big and heavy to deal with. Im taking it to the engine shop I used to work at. Im off for the winter. So my old boss is letting me work off the labor.

Well I found the problem with the block today. The number 5 cylinder has a small notch out of the top of the cylinder wall. It is above the travel of the rings by .06 or so. Looks like it was there from the factory. Almost looks machined out. Maybe a screw up at the factory that slipped past? cant post pics from my phone.

Thats actually really good to know - hope I never need to use it - but very interesting. Wondering what shop labor would be typical if you supply all the hard parts. For that matter how hard is it to do yourself ?

Pulled mine 3 times 2 to try welding crack 1 to install rebuilt with new block from frieghtliner $2900 in parts and head work 3 days of my time:cheers: