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b16 head vs. gsr head

Discussion in 'Engine Building' started by wickedplastikman, Sep 28, 2004.

  1. wickedplastikman

    wickedplastikman Senior Member

    i am looking to buy a b16 head and i see a lot of people selling gsr heads. ive always heard that b16 heads flow better than gsr heads but i dont know why. so my question is, whats the difference between the two heads and why is one better than the other?
  2. formby

    formby learning in progress

    they are basically the same i would recomend the gsr if turbo charging because of cam profile..but the newer the b16 head the better cam profile
    92 cams are diff from 99/00 cams

    if getting gsr get another intake manifold SKUNK 2 or a Type r
  3. phunky.buddha

    phunky.buddha Admin with a big stick Admin

    Cams and combustion chamber size... there's not really any difference in flow between the two in stock form.
  4. xj0hnx

    xj0hnx I wanna be sedated

    Yip, not much of a difference in flow at all. And the shape of the chambers lends to a slight bump in compression. So if you swapped a Skunk2 manifold got a light PnP, and swapped in some CTR cams, IMO the GSR head would be better.
  5. 2000Si

    2000Si Well-Known Member

    Wouldn't a B16 head with a PnP, and CTR/ITR cams be roughly the same as what you would find on a b18c5?

    All that head is a ported b16 head with more aggressive cams.
  6. xj0hnx

    xj0hnx I wanna be sedated

    With the exception of the combustion chambers, sure.
  7. 2000Si

    2000Si Well-Known Member

    ok... hmm sorry to hijack but whats the difference in the comb. chambers then?
  8. MikeBergy

    MikeBergy Blah blah blah....

    The pr3 and type R heads share the same combustion chambers, with a fully round shape. The gsr heads have a more flattened shape. I'll see if I can dig a pic somewhere.

    EDIT : here is a link to one of the forums I subscribe to. It has some great pics of some b16a, type R, and gsr heads. The gsr also has differently shaped ports to allow the air to flow into and out of the head with less turning. I'd suggest a gsr with a pnp and multi-angle valve job.

    Head pics.
  9. wickedplastikman

    wickedplastikman Senior Member

    thanks guys. i am running a turbo and using a built gsr block. a guy is selling a gsr head ported and polished with skunk2 valve springs and a skunk2 im. i guess ill go ahead and buy it.

  10. pissedoffsol

    pissedoffsol RETIRED

    werd- buy that head if the price is good.
  11. StyleTEG

    StyleTEG Senior Member

    The GSR heads have much bigger quench pads.

    Quench = essential.
  12. Slammed90Lude

    Slammed90Lude Senior Member

    i believe it's quelch pads :)
  13. B16

    B16 Super Moderator

    no, it is quench
  14. phunky.buddha

    phunky.buddha Admin with a big stick Admin

  15. GSRCRXsi

    GSRCRXsi Super Moderator Moderator


    i noticed this earlier. look how much larger the gsr's coolant passages are. wonder if that would help at all.
  16. asmallsol

    asmallsol Super Moderator

    ITR manifold does not fit on a GSR head.
  17. JDMilan

    JDMilan Senior Member

    I always tell kids that if the head is for a good price, and in good condition, then get it.

    when your running crazy times and trying to extract every little ounce of hp/tq then you might want to pay the extra if so for the gsr head...and you can always get your pr3 head quenched..
  18. StyleTEG

    StyleTEG Senior Member

    Easier said than done :(

    Lots of places won't weld the CC because of the extreme stress/heat it puts on the head and the chance of problems down the road due to it. Those that will do it, it isn't cheap.

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