crate engine/fit problems ?? - NCRS Discussion Boards

crate engine/fit problems ??

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  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43219
    #16
    Re: crate engine/fit problems ??

    Originally posted by Dennis Beck (41966)
    I have the GMPP ZZ383 in my '66. It has the aluminum fast burn heads. When it came time for the exhaust I asked a machine shop to port match these heads to my original rams horns manifolds. They felt that after they did the removal of the material the remaining surface area would NOT be sufficient for a good seal. With that in mind I changed course and went to Patriot center dump shorty headers. This meant I had to come up with a bracket to hang my alternator on. In addition this engine dropped right in. Water pump was changed to a short nose style. On the rear of the water pump I had to remove the cover bolts and replace them with button head bolts because the original bolts were hitting the timing chain cover before the pump would seal against the block.

    Dennis------


    I don't think that exhaust port matching is absolutely critical when using these heads with stock manifolds. I'm sure that for maximum performance it's very desirable, but I don't think it's critical.
    In Appreciation of John Hinckley
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      • Dennis B.
        Very Frequent User
        • May 31, 2004
        • 175
        #17
        Re: crate engine/fit problems ??

        Originally posted by Joe Lucia (12484)
        Dennis------


        I don't think that exhaust port matching is absolutely critical when using these heads with stock manifolds. I'm sure that for maximum performance it's very desirable, but I don't think it's critical.
        Agreed Joe. It was just a choice I made. I always did wonder about the angled plugs with the rams horns however.
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          • Joe L.
            Beyond Control Poster
            • February 1, 1988
            • 43219
            #18
            Re: crate engine/fit problems ??

            Originally posted by Dennis Beck (41966)
            Agreed Joe. It was just a choice I made. I always did wonder about the angled plugs with the rams horns however.
            Dennis-----

            I can tell you for absolute certain that angled plug heads work just fine with ram's horn manifolds.
            In Appreciation of John Hinckley
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