I recently bought a set of cylinders and pistons for my Sportster. They were advertised by the seller as late 73 to 85 HD NOS OEM cylinders but I have reasons to doubt this claim now that I have inspected them (don't you just love those acronyms?).
Can anyone provide some guidance on how to confirm my suspicions? How can I tell if cylinders are in fact HD product or an impostor?
Additional info:
Gasket surfaces on both cylinders are a bit irregular. The halves don't line up. I'll try to get some pics later today to show what I mean.
I don't see numbers on one cylinder but the other one has "2429" on it. No other casting numbers are present on the cam side base of either cylinder.
Both pistons have "B3" and "2227072" on the inside of em. One Has "B" stamped on top of piston and the other has a "D" on it.
Boxes for these parts have faded HD labels and are marked with part numbers "16464-73A" and "16465-73A". My HD parts book sez they should be "16464-73C" and 16465-73C". Not sure what's up with this discrepancy.
They bolt up nicely to my late 73 heads and the bolt threads are recessed about 1/2" into top of cylinders, which is correct for late 1973 to like 1985 cylinders, but I'm trying to confirm if HD manufactured them.
Thanks for any help in identifying these cylinders.
Can anyone provide some guidance on how to confirm my suspicions? How can I tell if cylinders are in fact HD product or an impostor?
Additional info:
Gasket surfaces on both cylinders are a bit irregular. The halves don't line up. I'll try to get some pics later today to show what I mean.
I don't see numbers on one cylinder but the other one has "2429" on it. No other casting numbers are present on the cam side base of either cylinder.
Both pistons have "B3" and "2227072" on the inside of em. One Has "B" stamped on top of piston and the other has a "D" on it.
Boxes for these parts have faded HD labels and are marked with part numbers "16464-73A" and "16465-73A". My HD parts book sez they should be "16464-73C" and 16465-73C". Not sure what's up with this discrepancy.
They bolt up nicely to my late 73 heads and the bolt threads are recessed about 1/2" into top of cylinders, which is correct for late 1973 to like 1985 cylinders, but I'm trying to confirm if HD manufactured them.
Thanks for any help in identifying these cylinders.
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