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F/S Union Bay Racing 730cc Billet top end for Polaris 600/500/440

Angermangement890

Well-known member
Lifetime Membership
Mar 17, 2002
935
264
63
Frazee, MN
www.koolmekustoms.com
I have a Union Bay Racing Billet top end available. These are not stock cyls they are a billet cylinder that replaces your stock top end. Fits 00-09 Carb 440/500/600 HO/VES engines.

About 155 Hp in top form with twin pipes, slightly less with a single pipe.

Bore is 84mm and can go up to 86mm, runs steel sleeves that are replaceable. Uses standard 600 y-pipe and any aftermarket single pipe, or any twin pipe for a 600 will run good. Engine runs 8250-8400 RPM.

Kit was $3,500 new, will sell for $1800 B/O Comes with 2 new 84.25mm pistons and sent the cylinders to Union Bay for boring and porting touch ups. Kit will be supplied with 2 new pistons/rings, wrist pins and all new gaskets to install.

Here are a few pictures, the rest can be seen at:

http://s40.photobucket.com/albums/e226/Eku...%20kit/?start=0

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