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    • Purge/Heatsink Blocks

    • 4B11 Purge/Heatsink Block 4B11 Purge/Heatsink Block
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      JMF

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      sku: 4B11-HSBLK-00

      4B11 Purge/Heatsink Block

        Our combination 4B11 backpurge/heatsink blocks are the perfect tool for DIY exhaust manifold builders.  The 2" thick aluminum block will absorb transferred heat and reduce head flange warpage drastically.  The block is also drilled so...

      $269.61
    • 4G63 Purge/Heatsink Block 4G63 Purge/Heatsink Block
      Quick view

      JMF

      |

      sku: 4G63-HSBLK-00

      4G63 Purge/Heatsink Block

        Our combination 4G63 backpurge/heatsink blocks are the perfect tool for DIY exhaust manifold builders.  The 2" thick aluminum block will absorb transferred heat and reduce head flange warpage drastically.  The block is also drilled so...

      $269.61
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