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  1. 5.0/5.8 Engine Tech
    Stupid question and maybe a wasted post. I have an 86 shortblock. I have E7 heads on there now that are worn out. I bought a set of GT40s from an Explorer. I am planning on cutting valve reliefs with either a Lisky or Indy In Head Piston Cutter and going down ~.15". I would rather not tear the...
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