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    WSRD DIY CNC Ported Cylinder Head Rebuild Service & Parts | Polaris Pro R

    WSRD DIY CNC Ported Cylinder Head Rebuild Service & Parts | Polaris Pro R

    by WSI
    $1,249.00 - $2,148.00
    $1,249.00
    $1,249.00 - $2,148.00
    $1,249.00

    CNC Porting Lead-Times

    All WSRD Cylinder Head Services typically take no longer than 3-5 business days.
    Relative to work load, some lead-times may exceed 5 business days.

    Choose a Valve Spring Kit Options
    Choose a Intake & Exhaust Valve Options
    Choose a Valve Stem Seal Options
    Introducing the WSRD DIY CNC Ported Cylinder Head Rebuild Services & Parts for your Polaris Pro R Fury 4-Cylinder Engine!
    What's Included? (When selecting "No Thanks - Machining Services ONLY")
    • WSI CNC Cylinder Head Porting Service
    • WSI Cylinder Head Deck Service
    • WSI Cylinder Head Valve Job Service
    • WSI Vapor Hone Clearing Service

    Please ship your cylinder head core to the following address: 
    Whalen's Speed R&D
    161 Commercial Avenue,
    Paw Paw, Michigan 49079

    Take your naturally aspirated, non-turbocharger Polaris Pro R to the next level with the WSI CNC Cylinder Head Porting Services! Please note all WSI CNC Ported Cylinder Head Services REQUIRE the +1mm Intake and Valve option. OEM standard size valves will not fit with this service. Valve Spring and Valve Stem Seal options can be added at an additional cost. 

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    INTAKE PORT - STOCK VS. WSI

    INTAKE PORT - STOCK VS. WSI

    Stock Port Average Air Flow: 189.8 CFM
    WSI CNC Port Average Air Flow: 210.6 CFM

    The WSRD CNC Port sees an average of ~11% CFM increase over stock with a peak of 19%.

    EXHAUST PORT - STOCK VS. WSI

    EXHAUST PORT - STOCK VS. WSI

    Stock Port Average Air Flow: 146.2 CFM
    WSRD CNC Port Average Air Flow: 158.1 CFM

    The WSRD CNC Port sees an average of 8% CFM increase over stock with a peak of ~15%.

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