I was looking on novarossi website for part numbers for replacement piston and sleeve for r1wsc2008 motor and it appears that all the parts are exactly the same as the 321p motor except the piston sleeve part number

Same crank,bearings, connecting rod, case, button etc.

Looks like the 321p is an 8port motor versus 7port for wcs.

What is everyone experience with the 321p looks to be a couple years older?

Would you consider the swap to 321p p/s?

Thanks

Jamie