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-   -   SPI Piston Size (http://www.focusfanatics.com/forum/spi-performance-2000-2004/312916-spi-piston-size.html)

dromeda 03-28-2013 10:13 AM

SPI Piston Size
 
I went to order a piston, but they come in multiple "grades" according to Ford, which I'm assuming is sizes. Is there a way to measure for which size piston and rings I need?

I know about the 1.2mm vs 1.5mm difference, but am wondering about the bore size. I've had the car since 8,000 miles so I don't think it's been over bored or anything.


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