| Listed in parts books | Not catalogued by year yet |
CYLINDER W/PISTONS 66-72
Complete cylinder block with pistons fitted, listed for 1966-72 unit twins.
70-6304A is a cylinder block sold complete with pistons already fitted, covering catalog listings that run from 1966 through 1972. This is the barrel assembly that sits on top of the crankcase, with the pistons riding inside the bores ready to be mated up with rods and rings during a rebuild.
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Buying the block and pistons together like this takes the bore-and-piston matching out of your hands, since the two come paired from the same listing rather than sourced separately. It's the kind of part you reach for on a full engine rebuild rather than a quick top-end freshen.
Given the wide year spread on this listing, confirm against your own parts book or call the shop before you order to make sure it lines up with what your motor needs.
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