THE 10 BEST SNOWMOBILE ENGINES OF ALL TIME! This list of 10 encapsulates all that is great in snowmobile powerplants going back several decades.
First introduced in the 1980s as a 400 and then inflated to 488ccs in 1989, this very basic piston port twin engraved its place in history, lasting in production until the early 2000s.
It found a home in at least a half dozen different Polaris platforms and offered consistent, reliable 80-range horsepower to the masses.
The engine was known for its lack of bells and whistles – no reed valves, no exhaust valves. Its last versions stepped up to flatslide carbs and that was about as hi-tech as it got.
We have fond memories of the first Indy 500 twin in 1989. That over-achiever blew away sleds 100ccs larger and there wasn’t any good explanation why.