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Re: 75-77 mm Flat Top Pistons for A12A ? | Subject: Re: 75-77 mm Flat Top Pistons for A12A ? by ddgonzal on 2019/3/10 23:27:41
Yes J-series uses flat-top pistons
* J15 has 39.8 pin height so will stick up out of the deck 7.3mm
* J18 has 31.9 pin height (0.7 lower than A12A/A14) but is 80.5mm diameter and uses a larger pin
* J13 has 32.5 pin height same as A12A and is flat-top, nearly same as A12GX but different skirt design -- smaller bore than A12A
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