Originally Posted by flybytaco
jim I'm verry happy about the pinned and balanced bottom ends!! good luck on this adventure... 60 is a tough number but with time it will happen and all the work you are doing to the bike had my first motor melt down yesterday and slammed a half a piston ring through my protohead dang i like that head better than the new one but like i said I run vp not pump gas and jim if you can stay away from the crowded bearing lower crank the caged style is much better i think i lost a few needles out of that crank yesterday
I expect the engine will be smooth and a lot more powerfull after these machining ops.
I still have the CNC program for the high comp heads. I can run one in the next batch since you are already tuned for that compression ratio. I plan on using the same one and Sunoco 110.
I have yet to find a crank with loose needles in the big end...they have all had the standard cage type. 3 PK's, 4 Grubees, and numerous others of unknown origin...all caged.