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John, We talked about the piston weights. Like I said my forged pistons, pins & rings have come up CONSISTENTLY lighter than stock. Make ABSOLUTLEY SURE the assembly was balanced correctly. I HAVE NEVER had to add weight!!!! Tom T.Hi Tom , I did double check with the machine shop that he had the flywheel indexed on the crank correctly when he did the balancing .as far as having to add weight to the crank there could be a couple things that could possibly made that happen . 1 is we put a different set of piston pins in them .He didn't like the fact that the pin fit was only at .0005 so I bought a set that had a .002 fit , so they may have made up for some of the extra weight . also the amount of weight he welded on was,t really that much , if you look at the photo close he removed weight from the last counter weight which would actually decrease the amount that was welded on . I will admit the guy doing the work doesn't know a lot about nailheads but they've been doing race engines in the area for a long time . They also have a dyno service that they use every day , so we will be breaking the engine in there also .Tom thanks again for making these pistons and setting me up with good parts .Talk to you soon .
