Greetings-
I've got my '29 JD cylinders at a machine shop and have been researching pistons. I've been told that VL pistons will work ok if the skirts are trimmed down to clear the crankcase baffles. I haven't found a source for cast VL or JD pistons yet. Competition Distributing sells forged JD pistons for $300 a set but the standard bore size listed on their website doesn't correspond with the bore size listed in the Service Dept. Bulletin Volume 1 book I've been studying. The correct piston size can be selected from their list but why would they change the original bore size to something other than what Harley's factory service book has listed and make it more complex than it has to be? The cylinders I have were .030 over and had a set of +.030 steel pistons with them. If the bores hadn't been so pitted I would have tried running them.
I did a search for related threads in this forum but couldn't find any.
If anyone would like to recommend or warn against certain sources for pistons I'd be interested in reading your opinions. -Jim
I've got my '29 JD cylinders at a machine shop and have been researching pistons. I've been told that VL pistons will work ok if the skirts are trimmed down to clear the crankcase baffles. I haven't found a source for cast VL or JD pistons yet. Competition Distributing sells forged JD pistons for $300 a set but the standard bore size listed on their website doesn't correspond with the bore size listed in the Service Dept. Bulletin Volume 1 book I've been studying. The correct piston size can be selected from their list but why would they change the original bore size to something other than what Harley's factory service book has listed and make it more complex than it has to be? The cylinders I have were .030 over and had a set of +.030 steel pistons with them. If the bores hadn't been so pitted I would have tried running them.
I did a search for related threads in this forum but couldn't find any.
If anyone would like to recommend or warn against certain sources for pistons I'd be interested in reading your opinions. -Jim
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