You usually go the other direction when the HP level goes up and use a thicker wall wrist pin. The wrist pin actually gets oval shaped under load, and a .090" wall pin is only for use with ultra light pistons and lower HP and RPM apps. I have built and raced many high HP nitrous and blown engines and a .187" taper wall pin is the common type to use in those builds.



Class III CNC Machinist/Programmer