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d16y8 crower stage 2 turbo head

Discussion in 'Engine Building' started by zackzerr, Feb 17, 2014.

  1. zackzerr

    zackzerr Member

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    hey guys so i just picked up this y8 head. its been ported and polished. came with a crower stage2 turbo cam and springs and titanium retainers. it currently has stock valves so im ordering crower valves. im planing on about 14 psi to 18 psi. should i get oversized valves or stick with stock size?
     
  2. Briansol

    Briansol Admins Admin VIP

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    stock is probably fine. if you go larger, you probably will have to do more machine work to match (ie, 3-angle)
     
  3. zackzerr

    zackzerr Member

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    cost wise its the same for the valves. would it be worth the machine cost to go ahead and over size them? im already dropping 300 for the valves.
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    I would talk to someone who knows about the port job that the head has had- you could screw it up by resizing the valve seats for the larger valves. Larger usually is better for flow, but not always. Research before you jump.
     
  5. zackzerr

    zackzerr Member

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    would i be best off to buy a cometic 2mm head gasket? or a mls
     
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