Rebuild kit question

[Poundtowne]

(10-05-2022 )Skman Wrote:  I went onto Quickserv to see which kit I would need to do inframe. But it's telling me there is an option for 150 and 152 liners. I figured Quickserv would know by my ESN which one I would need but I guess not.
So I called Kenworth and asked the parts guy how I could tell which one I need and he says "you gotta measure it!!"
So, I said well...I'd kinda like to know which one before I start tearing anything down....just in case they're backordered for months.
He says "yeah I suppose that makes sense...but you'll have to call back when other guys are in. They might know how to figure it out"
Figured I'd come on here and see if there's a way to know WITHOUT tearing apart the engine?
Thanks

Is this your first ISX rebuild? There are A LOT of things that you will need to know that aren't in the manual so I would advise you do your homework if you want the rebuild to last.

Answering your question: there is absolutely no way to know which liners you have until you pull them. Second, there is are ZERO aftermarket kits you should buy. You might as well not rebuild it unless you're going OEM only AND you are installing a brand new head (no reman, no rebuild). Third, you need to have someone cut counterbores properly and shim them to 15 thousandths. There's a lot more but Im trying not to write a book here. Good luck with your build!