| | These are the correct intake manifold spacers to use with Mopar Performance's Stage VI aluminum heads on "RB" (440) blocks. Also, these spacers can be used to mate a "B" manifold to Stage VI heads on a "B" block. The unique design of the Mopar Performance's Stage VI intake manifold spacers allows the standard 440 intake gasket/valley tray to still be used as a valley cover with a simple modification and paper gaskets. Package contains 2 cast aluminum manifold spacers.
440 Big Block with Stage VI Heads | 
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