Cheap strong reliable engine?

[Riptide]

The 97,98 Polaris 700 motors were fairly bulletproof. Don't know how much HP you could squeeze out of them though.......

This could be a possibility as well I have the crankcase and cylinders already and the cranks are pretty inexpensive as well

 

[rsaint]

The 99 was a ck3 bulkhead motor mounts may need modifications to fit the 670 in it.

 

[Summiteer]

The 99 was a ck3 bulkhead motor mounts may need modifications to fit the 670 in it.

don't you have a couple of 809's kicking around there Ron?

 

[jamoanlee]

Could this be of interest?

 

[rsaint]

don't you have a couple of 809's kicking around there Ron?

Not no more only got set of rave valves and 97 motor mounts. Im a cat guy now u know