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Union Bay Polaris 950 kit

T

Turbobusa

Member
I have a brand new billet UB 950 twin crank, 2 cylinders & head.
Please make offer.
Thx

I have had some of you tell me that this is a 900 engine and a 910 engine..now I'm not a UB expert and I dont know the exact size. Tell me what to measure and I will.
Thx
 
Last edited:
UB

Do you know what brand the crank is for? Such as Polaris etc? I am interested if the crank fits in a Polaris base and give me your phone number or call me at 518-358-3027 thanks, Delton
 
You need to measure a couple of things to see exactly what you have. A UB 950 has an 88mm bore and a 78mm stroke and the cranks that were built for the billet case have a 6" center on the rod journals. Stock Polaris cases have a 5.5" center on the rod journals. The easiest way to measure the stroke length is to measure from the bottom of the tranfer ports to the top of the cylinders.
 
Last edited:
Ubr

Ok I took it in to the local mod shop and they said this is a 76mm stroke.
Yes sorry I have sold the heads (they did not go with the UB engine anyway)
I still have the crank & cylinders.
Make offer
 
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