d series turbo... z6 or y8 built head?
04-13-2008, 06:25 PM
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d series turbo... z6 or y8 built head?
what head is better the y8 or the z6 for turbo? looking for 250+ with a z6 block eagle rods, vitara pistons, ect for the head i was thinking just springs and retainers then a bigger cam
04-13-2008, 07:03 PM
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Re: d series turbo... z6 or y8 built head? (4ghatch)
If I remember correctly, the z6 head outflows the y8, but the y8 combustion chamber has a quench zone. I'm not sure that either of these factors will be that significant. I'd get the cheaper one. 
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