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Big Bore piston identification

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This the piston measure out at 100.457mm. No markerings or numbers. Wonder if anybody see this kind of big bore piston. I’m leaning towards a Wiseco. But not for sure! Any help would be appreciated!

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need to look underneath the piston for numbers / letters
could also be a Vertex or J.E
 

Been there! No numbers or markings at all on this slug!

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ok what are you trying to find out - apart from piston maker

Trying to find a manufacturer to get new rings and head gasket.

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It does look like the older style wiseco

you cant make out any anything in the middle of the piston ?

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Ive been searching pics to see if i can match it up - no luck yet

The only other thing is to put a whole piston kit in it

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This is for an XR600r isnt it ?

Found the exact same shaped piston - but its for an 84-85 XL600

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This is for an XR600r isnt it ?
Found the exact same shaped piston - but its for an 84-85 XL600

Can you sent or a pictures of what you found?

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Looks like an XL piston to me.The old HRC piston was a domed XL600 sized if memory serves me. Which is dose not lately. But that was an cheap way to do a bb in the old days.

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