Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Zetec in ZX2 the same as ZX3?
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Old 10-04-2012, 04:03 PM   #3
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To my understanding the S/R had the same engine (with addition of the blue valve cover). It has a different ECU, intake and exhaust. The ZX2 and focus engines had different heads, cams and the ZX2 has VCT. I think the block and pistons are the same.
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