I may be wrong but if I am John please correct me. But just because the pistons are balanced...you still have to have the whole rotating assembly balanced including the pistons. When I had my bottom end balanced. It was pistonsrodscrankcrankpulleyflywheel and clutch. Eisleys did my stuff in about 2 days and it came out great. If you live in Tampa I would reccomend them... but if your in Pinelas try DWANS.
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ROCKY
TEG Widower
Hatch Builder
**see the back of that hatch??? get used to it