I have a 2004 Grizzly with hopefully only a blown top end. I was curious about whether I could put 660 raptor top end in along with whatever else to make it work, Any info would be great.
You can't put the top end on as the head is different but I have put a lot of Raptor pistons in Grizzly's. If you do a cam and mild port job at the same time it's a good power in crease. Exhaust is a big help as well.