i have an 02 800 ves motor that i am completely redoing after my pto rod pin broke last winter. my cylinders are at millenium getting recoated and for some reason i have decompression holes in my 02 so i am welding those closed. right now i need to order some pistons and gaskets. i was going to order the wiseco prolite series, but thought i read somewhere a while back that polaris motors dont run well with wiseco. i have always used them in everyother toy but that makes me wonder about this. the motor is a stock rebuild with a better crank. so if yall would give me you imput.
what is the best piston
- Thread starter bt04f250
- Start date
I think the best are the wisecos are the best, th eoems are close and the spis are ok but but the rings are not as good in my expereance I have been running wisecos in my 700 ves and they have worked well for me
I've been using SPIs in all the Polaris twins I've worked on since 2004 and haven't had a single failure... something like 60 motors I've done since then. I really like the SPIs.
Usually you don't weld the decomp holes shut, you just tap and screw a little set screw in there.
sled_guy
Usually you don't weld the decomp holes shut, you just tap and screw a little set screw in there.
sled_guy
IMO weisco pistons are junk in the 2-stroke sled catagory. They cant take the abuse since they are forged. Just too soft, locating pins constantly come loose causing major damage.
The SPI is an awesome piston. Being a cast piston and teflon coated makes them more reliable and easier to break in. Ive compared them right next to OEM polaris pistons and they are an exact copy and no failures here either on the last 20+ builds in 2008-2009 season.
The SPI is an awesome piston. Being a cast piston and teflon coated makes them more reliable and easier to break in. Ive compared them right next to OEM polaris pistons and they are an exact copy and no failures here either on the last 20+ builds in 2008-2009 season.
