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660 piston in 500i

Nutball

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Who has run a 660 piston in a 500i? Tell us how it went.

To me it looks like the top and bottom need to be trimmed to get the squish and crank case clearance/intake timing needed to work. It's already 10g lighter than the 500i piston before modifications, but has a narrower skirt.
 

jacob j.

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Sierra_rider on AS did a writeup on that setup if I recall right, they want me to log in and I want them to GFY or I'd post a link.

 
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