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Head Differences?

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  • #16
    Is there any difference in the RS 500 casting to a 4x4 one then.

    Other than the doweled inlet and the matched ports.

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    • #17
      I bought a rs500 head for £10 2 year ago which was found in a scrappy in the 80's

      Think it was non concast and the numbers were different to saff ones. Im sure someone told me the ports were slightly different too on the inlet side

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      • #18
        Yes Joe, the ports are milled out to match the inlet.

        But is the actual casting the same as a 4x4.

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        • #19
          Some interesting points made.


          Oh and Kelv..............


          Follow me on Instagram @billy_rs

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          • #20
            Resurrecting an old thread but which head is better.

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            • #21
              Small turbo 4x4 cossy

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              • #22
                One in good condition. The 4x4 is the prefered one normaly
                www.sapphirerscosworth.com

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