Quote:
Originally Posted by gsxr
Sorry for the confusion - yes, I meant it's not worth shelling out for a rebuilt long block 617. However a head rebuild, as you described, would be fine. I would NOT shell out for new prechambers, I consider that a waste of money unless they exhibit some signs of failure (cracking, pitting, etc) which would be quite rare, IMO.
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Apparently, the shaft that the ball sits on will loosen in the walls of the prechamber over time. After 175K, the shafts were not rigid in the walls anymore and the likelihood of failure in the next 100K is significant.
The question is exactly how long these shafts would last. The extra $300. was worth the peace of mind in my case.