MustangMike
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- Local time
- 11:46 AM
- User ID
- 338
- Joined
- Dec 30, 2015
- Messages
- 11,500
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- Location
- Brewster, NY

Ripped down my Asian 440 BB #2 today and replace the New West piston with an OEM Stihl 460 piston, which is lighter.
As a result, I think I got rid of the excessive vibration problem. OEM 460 is only 12% heavier than 440 piston, a Meteor 460 or New West BB is 20% heavier, and they just over load the little crank.
I'll save the heavier pistons for 460 builds, the heavier crank handles them just fine.
As a result, I think I got rid of the excessive vibration problem. OEM 460 is only 12% heavier than 440 piston, a Meteor 460 or New West BB is 20% heavier, and they just over load the little crank.
I'll save the heavier pistons for 460 builds, the heavier crank handles them just fine.