What's the difference between these pistons?

[Mrkentee]

(03-14-2016 )Mrkentee Wrote:  

(03-14-2016 )Unilevers Wrote:  i ran those numbers and literally the only thing different in those kits is the piston - the rest is the same. i believe yours is the lower horse/cpl and the other is for the larger HP engines.

Thank you. So with the 485 tune will I be ok?

To answer my own question-after reading the post about increasing horsepower, cpl, cal file; it looks like this cpl 2732 can safely be increased to 475 anyway, so I shouldn't have anything to worry about at 485. Correct me if I'm wrong. Being a former fleet truck, rhymes with lerner, I was thinking they might have intentionally built it to remain low power.