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stock piston size 78 DT175


John in Vegas
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I have a 78 dt175 thats been in the family since new. I dont think Dad had any overbores done. can someone tell me what the std piston size is so I can compare measurements?

Thanks

Same as its always been since the first 175, 66.0mm 3 official oversizes at .25, .5 and .75, the aftermarket do upto 2.0mm extra.

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Same as its always been since the first 175, 66.0mm 3 official oversizes at .25, .5 and .75, the aftermarket do upto 2.0mm extra.

Thanks. I found it on my own before getting back here. I hope to have this 30 year old beast running within the next 2 weeks.

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