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Piston size......

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4g91ajer

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Nov 29, 2003
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Can somebody tell me the piston size for 4g91, 4g92 sohc, dohc,mivec, 4g93. Is it possible to rebore 4g91 block to fit in 4g93 piston? Any side effect or other parts need to change? Really appreciate u guys help
 
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felix

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as far as i know, u can only upgrade ur piston max is 2mm bigger than ur original piston. so for ur case max is 80mm. if more than that ur piston will reach the water jacket...
 
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4g91ajer

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Nov 29, 2003
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I'm planning to change the engine head together to 4g93 head, i believe some of our forummers have done it before and really appreciated their views...

huakenny said:
78mm piston block wanna rebore to fit 81mm piston.....3mm differences huh....guess ur cylinder head oso gotta change d
Click to expand...
 
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