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Old 04-07-2012, 09:37 PM   #105
disciplerocks
GT40 all the things!
 
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What I Drive: 04 ZX3, 12 Hatch

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Ok so the old valves were not only pitted, but warped. Ordered new valves after trying to lap them in I realized the seats were warped. Also took the head to a machinist for a professional port and polish.


Old vs new



Stock head vs ported ZX2 head



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