Probe 9.0:1 Lightweight Pistons for '00-04 Focus Zetec/SVT/ST170 - Standard bore

Note: Standard bore pistons. Require new or low mile engine block. About 9.5:1 compression with SVTF head.

•Forged from premium 2618 aluminum alloy

•CNC Machined side relief with lower support band provides optimal strength for extreme horsepower applications.

•CNC Diamond turned skirts with reduced cylinder contact profiles provide less friction for increased horsepower

•Forced Pin Oiler for increased wrist pin lubrication

•Sold with rings

•40-51 grams lighter than other brands.

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