Engine Block Numbers Not Adding Up...

. First thing to do is make sure you know what parts you need. Any mechanic can tell what pistons you have by removing the oil pan. That means having it at the right shop. The Dealers only replace same with same. Without a part # they’re useless. Lots of good aftermarket kits. I used a FP Diesel Kit from M&D Distributors. Dealt with their Houston location. It’s a good kit. Frontier Truck parts in Flint Mi. has good prices on Mahle kits. LTC Truck Parts in Madison Hts Mi also carries Mahle kits. They’re very knowledgeable, only slightly higher than Frontier. Worth it, considering how helpful they are. 248-434-8391 talk to Lindi. I’d go for the Mahle Kit, over any of them. If you can’t return the kit you have. Maybe there’s other options. Head and injectors from Freightliner. Better prices than DD Dealers. I’m guessing at what you currently have. The questions are, what pistons are currently in the engine, what kit do you have? Can it be returned for a refund? Maybe you can buy new rods and use your current kit. Maybe even upgrade to newer drilled rods, adding wrist pin lubrication, and get by without oil squirter nozzles. Not sure if the wrist pins are the same, Theres 2 sizes wrist pins. The larger ones might be for the drilled rods, and wouldn’t fit the pistons in your kit. All maybes, I’m just guessing. The nozzles were added to cool pistons, to address the old style bolt in type from coming apart. A common problem at 750k sometimes resulting in a ruined block. Might be best to keep the kit you have, buy new rods and wrist pins. I’m not sure that’s possible. Seems like it would be. I really don’t know enough about it. Need someone with more knowledge to help. I only know what I’ve ran across while looking for my Own kit. It’s best to upgrade to the 16.5:1 pistons with floating wrist pin if possible. The 15:1 old style bolt in type have a problem with blowing white smoke, till warmed up. Something to do with LoNox program. One of the reasons they went to 16.5:1 pistons. It’s very common to rebuild an older style with the newer style. I’m just not sure about needing the oil squirters or not. Probably not, unless you plan on upping the HP, through tuning upgrades.