Matt00695 Posted February 19, 2021 Report Share Posted February 19, 2021 Hey guys I have a question in regards to top end builds. I just want to know if I bore out my cylinder and get an oversized piston, do the piston to cylinder clearance specification remain the same as the OEM one? And does the ring end gap have to be the same as the OEM specification? For example, if the bore size goes up to 64.50mm will I still need a piston to cylinder clearance of (0.0024 - 0.0026 inches). And will I still need my ring end gap of (0.012 - 0.18 inches). or will wiseco have different specifications each oversize? Quote Link to comment Share on other sites More sharing options...
Keno Posted February 19, 2021 Report Share Posted February 19, 2021 For cast piston follow the OEM guidlines, or what comes with the piston If going with a forged piston 0.0030"-0.0050" I'd probably go for 0.0035" and heat cycle the motor a few times. ring gap http://www.wiseco.com/PDFs/Manuals/RingEndGap.pdf 1 Quote Link to comment Share on other sites More sharing options...
Matt00695 Posted February 19, 2021 Author Report Share Posted February 19, 2021 Thank you for the response keno much appreciated. And yea most likely going wiseco when it’s time for the build. Quote Link to comment Share on other sites More sharing options...
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