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ProMaxx Performance 320 Series Aluminum Cylinder Head Kit

723-9318K


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320 Series Aluminum Cylinder Head Kit
$2,430.33
Oversize Fee:$19.99
3 left in stock
317 Series Aluminum Cylinder Head Kit
  • Big Block Chevy
  • .600" Lift
  • 317CC Ports
    Includes:
  • Cylinder Heads
  • Head Bolts
  • Intake Gaskets
  • Header Gaskets
  • Head Gaskets
  • Valve Cover Gaskets
  • RTV Silicone
  • Ships
    QTY

    I have a 402 bored 0.060 over will the valves clear the cylinder wall or does a clearance need to be done?

    Asked by: Rsevers
    The Pro Maxx 723-9318K cylinder head will require the clearances to be checked at installation.
    Answered by: jshook
    Date published: 2024-04-18

    This kit says it comes with the ProMaxx 723-9318 heads. The ProMaxx 723-9318 heads show a maximum lift of .600" but this description says .700 inch lift. Does the 9318K kit come with different springs?

    Asked by: Dmac94
    No, the maximum ,list on this kit is .600"
    Answered by: Rusty B
    Date published: 2024-02-04

    I have a 454 with .100 dome piston what will my CR be with these heads

    Asked by: Jsengar
    This will be an estimate as the actual number are based on a number of factors. We would estimate this to be approximately 10:1
    Answered by: Rusty B
    Date published: 2024-02-04
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