2000 Cat C12 Horsepower Uprate?

Good engines. Just keep overheads set, tend to wear out rocker tips and end up with cam followers issues if you don't.

 

That’s something I learned years ago with race engines. Anything with roller rockers in it doesnt like excessive valve lash, and they have a couple of nasty ways to tell you that.

 

That engine is available at over 700hp as a propulsion engine. I wouldn’t worry too much about hurting it with a truck engine file in it.

 

I know of people got headfaked by rv/fire truck files. One ran ok but not noticeably better, but it had an Allison in it. I think you’re right, it’s probably the torque-rise in those files makes them fall on their face a bit with a standard transmission. Unless you plan on being in the left lane with it on the governor all day. That 430/1650 truck engine file should do nicely.

 

Marine duty cycle is totally different. RV file is for racing thru lights, Truck file for pulling weight. Genuine BW 172753 is a nice upgrade on the C-12.

 

There’s a couple of those engines around here in 5axle rigid frame pulpwood trucks. I don’t know what ones, but they have Cat truck engine files and different turbos on them. They come out of the bush right with the 14 and 15L trucks. 430/1650 would be more than decent numbers out of a mechanical 14L. Like it should run right over a 444 with that much torque at 430hp.