Proform 66797 4-1/2 Bore Maximum
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Always the correct part
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Performance matched parts
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This will go over cylinder bores up to 4-1/2in. This is used to check piston-to-deck clearance, and it is magnetic so it holds firmly in place. Dial indicator 66962 is sold separately.
Dial Indicator Not Included and Sold Separately
Please review Specifications and the detailed fitment table for notes and exceptions.