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Post by snapper67 on Feb 12, 2019 11:47:20 GMT
Hi guys fairly new here, been checking in on posts frequently to see if there’s anything new. I’m looking at the 31ci pistons and seeing 2 numbers referring to date codes before and after just wondering if someone could tell me the difference between the 2 whether it be thinner or thicker rings, flat top etc etc the numbers are as follows for a 31p677 - 594539 used before date code 14100100 And 594435 used after date code 14093000 so are there any huge differences I should be aware of? Any insight would be greatly appreciated !
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Post by thebandit21 on Feb 12, 2019 14:05:53 GMT
Both pistons are flat tops, the 594539 looks like a regular piston, the updated piston 594435 is a low friction short skirt piston looks like a race piece. Go with the later piston if possible.
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Post by snapper67 on Feb 12, 2019 16:16:56 GMT
That’s awesome I appreciate you getting back so quick , low friction and “race ready” sounds good to me! Thanks again!
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