They are almost a match, took a head gasket from mx5 1.8 BP
engine and put it on the ca18de I had and was so close its scary
even oil feed lines up, water galleries and front oil drain
just needs rear drainage like on high hp cadets and fill others.

just in case someone out there wants a better flowing head
with more aftermarket support, better looking and different

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  mazda bp 1.8 and ca18.jpg (80.17 KB)


  mazda bp 1.8.jpg (109.78 KB)