Blown top end 2011 pro rmk 800

503 miles on machine is it worthgoing OEM or should I get aftermarket cylinders and pistons oh side piece of ch!t!!!!

OEM approx 1700 - 400 for core


please advise

Talk to chris at parkland and put the fix kit in. Only option.
He did it cheaper includig the cylinder. But mines an iq.

I think big bore with pistons, cylinder and head is around 2000.

Dont go back to oem. Do the pms fix from parkland motorsports or 910 PAR kit is workn good too i heard if u got more cash for 30-40 more hp i think.

PAR 910 is not working good. My top end went in my assault as well. It had 1300kms on it and the dealer or I can't figure out why, burnt a hole in the side of one piston the size of a penny and both cylinders ended up scarred. It was still warrantied and it was entire top end, the cost was about 2700 if i had to pay. I would suggest stock cylinders PMS fix kit, and stock head or even A PAR head. You will get some better compression out of the fix kit as the pistons are a better fit than the stock ones... Im not positive but new cylinders are 1200 from polaris, fix kit I beleive is 650, and the PAR head is 380. With everything you need its going to be nearly as much as replacing stock but you will end up with more horse power and maybe more reliability.

RKTek. I did pistons and a high compression head for less than some of the other "fix kit" things out there...RkTek drop in pistons are less than $400, the head is another $400...

the rk pistons are 2mm shorter then stock, trying to raise ports up, way too much. other fix kits have taller pistons to be more reliable, some are cast reliable and some are wiseco. also poor cooling head design
so you pay for what you get sometimes