imtheman0313 (Lurker) View all posts in this topic  
Wed Feb 22, 2017 8:47 pm

Just found this out the hard way. The j pistons interfere with the combustion chamber cutout. However the deck height and pin diameter ARE the same. I just got some wisecos for the j and am having a machine shop mill them to work. I will be measuring the some height and size as well to see if i need to modify that. The pistons are labeled as 12.5:1 but who knows once I get done. I will do the math once work is finished and update everyone with numbers and feasibility. Again I will also be doing a total write up on this machine as soon as it's back together. I have a few mods still to go for updating and/or retrofitting it.....but I am getting close. Biggest issue is money. Second is time.

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