Vortec Cylinder Heads: The Definitive Guide

Discussion in 'Engine Topic' started by MikeM79, Jul 4, 2006.

  1. 72bomb

    72bomb New Member

    Jul 14, 2010
    I am running 18* intial + 16* mechanical...= 34 degrees...you may have to bump it up to 36*...who knows, every motor likes different things!
  2. ruler7171

    ruler7171 New Member

    Jun 26, 2016
    Valley, AL
    Would there be any problem mixing the casting numbers on a build? I have one good 906 and need to find another cylinder head but didn't know if I needed to look for a 906 exclusively or if a 062 would work. Also, what is your thoughts on getting remanufactured cylinder heads and sending off a core?
  3. fester

    fester Veteran Member

    Jun 26, 2016
    Central Texas
    Take them to Patriot there in Alabama and tell them to make them the same. I bought a take out 6.0 out of a Trailblazer with 1 243 head and 1 799 head. I took them there( I was working on B'ham) and they said they were physically the same just a different building (manufacturing) process. I'll bet They would work but if they CNC port them and do their valve job and stem machining and install their springs you will be a Happy Camper

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