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Discussion Starter #1
hello all

sorry, I am sure this has been covered a million times, but I didn't have much luck using the search function; I have a 1991 JDM DOHC ZC, and it is going in for a re-rebuild (the rings didn't seat the first time...). I have a feeling that a rebore will be needed, thus so will oversize pistons, and I am wondering which pistons to tell the machine shop to order. I am hoping that there is a USDM direct replacement.... I don't want to end up with a lower compression ratio than what it should have.

any info appreciated

greg v
 

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Pm7 or P29's ..
 

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nippon Racing makes a good OEM replacement..
 
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Discussion Starter #5
pistons

hey guys

are the PM7's and P29's identical in every respect? If so, do they carry different part numbers, and if so, why?

thanks all for the responses

greg v
 

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gregv said:
hey guys

are the PM7's and P29's identical in every respect? If so, do they carry different part numbers, and if so, why?

thanks all for the responses

greg v
PM7 USDM spec, P29 JDM spec same just different part #'s! :werd:
 
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