My xrt was smoking heavy when up to running temp and the idle had became erratic. I done a comp check and each cyl was around 130psi but cly 2 was higher (around 150).
Ive stripped it, plan is to fit new rings and get the turbo re-con'd as there is a lot of up/down play and a little in/out. I also checked the valve guides for play and there is a little play there so may get them done for good measure.
Anyway ive always been keen to have a look inside my engine as ive got the receipts from specialised engines who built it. Its meant to be a 1.9 tall block with low comp pistons, arp rod bolts stage 3 big valve head etc.
The pistons have a little JM stamp on them?

Heres some pics of the pistons/block let me know your opinions....















Grant