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b18a1 vs b18b1

Discussion in 'Engine Building' started by projectxspeed, Jun 21, 2004.

  1. projectxspeed

    projectxspeed Senior Member

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    Alright so what is the difference between the two. I thought the internals were a lilttle better in the b. My friend is telling me that there are difference in the block that make the b better. Can someone enlighten us?
     
  2. brian11to1

    brian11to1 Senior Member

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    The blocks are the same the main difference in the two are:

    intake manifold
    electronic system
    Cams
    exhuast manifold

    tehy both run same comp. ratio, bore/stroke etc... so those are the only for things different. nothing inside is different...
     
  3. radnulb

    radnulb Senior Member

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    IM + Cams are noticeably different.
    The B18A is tuned marginally better from the factory, but has cams that are much shittier up top (5000+).
    The B18B is DE-tuned more from the factory, but has noticeably better cams up top.
     
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