All posts by 98grizzsixhundred

660 rebuild raptor killer

I’m picking up an 05 grizzly 660 today that is past due for a top end rebuild and I think I’m going to go big with a wiseco high comp piston, new crank, rod, bearings and a hot cam with the associated valve springs. Think that will be too much for the rest of the machine and compromise reliability? If there’s enough interest I’ll post pics through the whole project and keep y’all posted