I wouldn't think so. But mine is balanced to 4k.Would you benefit from this product if your motor is already balanced?
..... It kept my crazy PMR motor together for longer than most.
Yup! I have a DT466 from the early 80's, and it has one too.A good damper will help any engine, stock or otherwise. Reguardless of whether the engine has been balanced or not you will still have vibrations due to harmonics among other things. Fluid filled dampers have been used on high horsepower engines for years. Cummins and Detroit have been using them for 40+ years. They work.
Actually it's already promised to some dude in Kansas. The guy that fell off the planet. He goes by the name: Nick Gerard.Need more room in your garage? I'll come down and pickup for ya, won't even charge ya to haul it off. In fact I'll double what the scrap hauler will give ya for itoke: