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<  Performance issues  ~  need help ID'ing a 65mm pistion i jut bought

cafebob
Posted: Tue Jun 26, 2007 4:48 am Reply with quote
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Joined: 16 May 2007 Posts: 7
so i just picked up a bored out 750 motor...65mm, included a raceing cam for 150$. Problem is one of the pistons is bad, and I can't find one to replace it. The piston has ART on one side and a 879 on the inside. it is 65mm and domed...anyone seen one of these...or better yet have a spare?

cafebob
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Satanic Mechanic
Posted: Sat Jul 14, 2007 12:25 pm Reply with quote
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Joined: 04 Sep 2005 Posts: 309 Location: Munich, Germany
Cafebob,

that sounds like a good deal, even with one piston missing. Apparently there are a few (three at least) piston manufacturers by the name ART (one in Taiwan, one in Japan, one in Thailand Do a google search for piston art and you get lots of hits). Sudco also carries ART (Japan) pistons for ATVs, maybe they can help you out?
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RxmanGriff
Posted: Sat Jul 21, 2007 8:28 pm Reply with quote
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Joined: 28 Jul 2006 Posts: 26 Location: Colorado Springs, CO, USA
Cafebob,

Post a picture, etc on SOHC4.net. If you're not a member then join. I'm sure there are a lot of other "sets of 3's" out there and perhaps one of the guys can not only ID it but provide a piston.
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cafebob
Posted: Sat Aug 18, 2007 11:20 pm Reply with quote
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Joined: 16 May 2007 Posts: 7
so i posted pics on sohc4 forums...ill put them here too...

http://cafebob.winkflash.com

positive Id'ed as Action Fours 65mm pistons for the F2+ motor. So...anyone have one?

turns out the guy i got them from put the in a K motor, Jim over at Action Fours told me that the compression ratio in that motor would be off the chart...hence the major detonation i found when i broke down the motor...

again i only need one guys....

C.B.
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