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Big Block Chevrolet Cylinder Heads

Big Block Chevrolet Cylinder Heads

All Pro Comp Big Block Chevy heads use standard 14mm x 750 reach, 5/8 hex, gasket seat sparkplugs. The following is a list of spark plugs that fit and work with these heads:
  • Champion - RC12YC
  • Autolite - AR3923 or AR3924
  • NGK - BCPR6ES or R5671A-7
  • Remember that higher compression or boost requires colder sparkplugs



    Items
    BBC ProComp Aluminum Cylinder Heads 300 Runner Bare - Item # PCM 3021-396

    BBC ProComp Aluminum Cylinder Heads 300 Runner Bare - Item # PCM 3021-396

    Price:

    $795.00

    BBC ProComp Aluminum Cylinder Heads 300 Runner Assembled - Item # PCM 3021-396C

    BBC ProComp Aluminum Cylinder Heads 300 Runner Assembled - Item # PCM 3021-396C

    Price:

    $1,095.00

    BBC ProComp Aluminum Cylinder Heads 320 Runner Bare - Item # PCM 3021

    BBC ProComp Aluminum Cylinder Heads 320 Runner Bare - Item # PCM 3021

    Price:

    $795.00

    BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled - Item # PCM 3021C

    BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled - Item # PCM 3021C

    Price:

    $1,095.00