Re: slp big bore kit for 400 polaris
The first sled I owned was a SL 404, this was built on a 340 liquid twin Polaris. It was a great combo. cylinder were was virtually zero after 5000 miles. Hp went from about 65 to 84 I think and it was our "tanker" sled... when the other machines would get low on fuel it still had half a tank and we would siphon into the others. The 400 Polaris twin was a result of the work SLP did with this machine, likewise the 488 (500) twin was a result of the big bore they made on the 400.