Has anyone heard bout putting grizz 600 clutch weights in a grizz 660? If so what was the result?

 

Lots of guys have put the weights from a 450 kodiak in, and it allows the engine to spin a bit higher, per mph. It lets the motor rev a bit harder, and provides a bit more oohmp at low mph. Downside is slow backshifting, and lower top speed.
Trouble is the system is balanced from the factory...which means the secondary spring and the centrifical clutch springs are all designed to work together, with thise original weights. If you just change one thing, there will be issues elsewhere...like back shifting.
Your best bet is to buy the kit, like from epi, which has all the springs and weights, matched, so it works with out hicups.

 

anyone else ever hear of this mod?

 

My friend had done it on his , he sold his 660 griz but still had the 600 weights and told me to try them , to me ,I really did not notice a diff. so I put my original ones back in .It could just be me though.