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Difference Between B18a1 Head And B18b Head?

Discussion in 'HYBRID -> ED-EF / DA' started by 88LXi68, May 5, 2003.

  1. 88LXi68

    88LXi68 Member

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    I know the cams are different, but is their anything else? Are the port sizes the same? Reason being, I have a B18A1 head I do not need and my brother in law has a 94 LS. he would like to get some head work done and put it on his 94 LS.
     
  2. SleEPeR_CRX

    SleEPeR_CRX Senior Member

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    #1, get head work done on the 1994 LS, it already makes 12 more hp, so it will make more. if u do headwork on the 1990 LS is wont make as much Hp as the 1994 LS head. the ports are the same, the b18b head just flows better and his better cams.
     
  3. lsvtec

    lsvtec GNU/Linux Evangelist

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    :bs:
    Do you have the flowbench printout to prove that?

    The B18B has better cams and a better ECU. That is where the 12hp came from.
     
  4. 88LXi68

    88LXi68 Member

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    So basically eveyrthing is the same except for the cams?
     
  5. SleEPeR_CRX

    SleEPeR_CRX Senior Member

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    ill try to find it, and its not just the cams that make the 12 hp, the head flows alot better.
     
  6. lsvtec

    lsvtec GNU/Linux Evangelist

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    Between 93 and 94, the exhaust manifold changed, the cams changed, and the ECU changed. All of these could easily make 12 hp.
     
  7. farmer_jason

    farmer_jason Senior Member

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    92-93 tegs are 140hp 90-91 130hp
     
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