20r Guide Available?

Discussion in 'Engine/Drivetrain' started by nnywg, Aug 4, 2017.

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  1. nnywg

    nnywg Member

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    My N10 project came with 2 20r blocks and 4 20r heads, with the heads off the blocks. The head & valve cover castings have slight differences and I'm just hoping to read up somewhere on what goes with what. If there's a guide somewhere that would be useful - searched but didn't find what I was looking for.
     

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