[ultrasnowman]

I own a 01 800 mxz and when I purchased the sled it came with a brand new speedwerx dial a dome head. I called speedwerx and they toldme it would give the sled 12 1/2 to 1 compression and that it could still run on pump gas, Does anyone have any experience or can you give me some ideas on what difference this will make in the way my sled runs.

 

[rippinituprev]

Whenn I bought my 98 Polaris RMK 700 it had been put back to the stock heads because there was a problem with the aftermarket ones blowing the head gasket. I'm not sure what make the aftermarket ones were but I can find out and reply the previous owner is a co-worker so I'll see What I can find out.