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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
    Choose a Valve Spring Kit Options
    Choose a Intake & Exhaust Valve Options
    Choose a Valve Stem Seal Options

    CNC Porting Lead-Times

    All WSRD Cylinder Head Services typically take no longer than 7-10 business days.
    Relative to work load, some lead-times may exceed 10 business days.

    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. 

    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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