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07-04-2020, 10:52 AM #15000 RPM
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Looking for pistons for KC13R OMC V4 (1970)
Looking for a pair of 384806 (standard) or 385741 (.020 over)OMC KC13R pistons. Deflector dome, approximately 3.500" with a 5/8" pin bore, high ring pressure back style rings, scalloped skirt intake side ....See the attached picture for more details.
I would appreciate any leads on one or several of these. I have a numbers matching KC13R and I would like to restore it to it's original glory. Thank you greatly for any help you can offer!
Bill, call or text: 847-845-4857 or email: wcrichter534@comcast.net
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07-08-2020, 04:03 AM #2Screaming And Flying!
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Don't worry where the ring is lower is better with **** ass gass,,,,use any piston that fits....cut the scirt as needed....hard to find old parts....so use what ya can find....
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07-08-2020, 09:15 AM #35000 RPM
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Hi Dave, yes, that's always a last resort, I have this one nice, original, numbers matching KC that I would like to be all original parts. No time limit on this one project.
In the meantime, I have the other project motors that have been prototyped, compromised, cobbled on etc. to play with or restore for the near term. Those will be runners. I can use 125 or 135 pistons in those.
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08-01-2023, 11:54 PM #45000 RPM
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08-10-2023, 04:00 PM #55000 RPM
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I have a few low-ringers. I'm not sure if any rebuild even a few years after they were new used the high ring pistons. maybe get 135hp heads to make up for compression loss?
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WTB: OMC KC13R pistons
By vintage v4 in forum Parts WantedReplies: 1Last Post: 08-14-2016, 01:02 PM