Scat is doing some 4.100 and 4.200 stroke cranks for us right now...CP pistons in the kit with 1.2mm ring package...the 4.200 crank uses a 1.88 journal.
Brian
Brian,
As I have the K1 4.125 already with the 2" pin I thought 6.125 rods with custom Diamond pistons. The zero deck reference was to help determine the piston compression height. Thanks Dan