The 40 on top of the piston most likely is 0.040" over... that was a common size for the 195.6, apparently. When I rebuilt my last one that was the only oversize NAPA could find in the southeast, and they told me back in 95 or so that I got the last complete set in the warehouse system. I told them to look for 0.030, but even 0.060 would do (the older blocks will go 0.125 over, 63-65 "only" 0.080 over). 0.040s seem to be the common stock, L-head or OHV. The long stroke means there's usually wear in the bottom of the bore. My 190K+ L-head barely had a discernable ridge at the top thanks to the little extra nickel in the iron, but the bottom was wore 0.020. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.amc-list.com/pipermail/amc-list/attachments/20070507/7f4c76f2/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list