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    CNC Ported Heads, M156

    sku:01-000-00055-1

    Availability: In stock

    $4,895.99

    * Required Fields

    $4,895.99

    CNC Ported Heads, M156

    Weistec Engineering announces the one and only CNC port solution for the M156 engine platform.

    Utilizing state of the art technology in CAD digitizing and analysis, Weistec Engineering has created the most consistent, and efficient method of port technology for the M156 engine platform. This proper port design nets a significant increase in laminar intake, and exhaust air flow.

    *Product may not be emissions compliant. Check local laws prior to installation. 

    Key Features:

    • 5-axis CNC machined

    • 397.88 CFM Intake flow

    • 257.81 CFM Exhaust flow

    • Fully assembled, Ready to run heads

    • Custom ground factory 40mm intake valves

    • Custom ground factory 33mm exhaust valves

    Heads can add an extra 40-50 HP on naturally aspirated engines, and up to 70 HP on supercharged engines with stock cam shafts.

    Notes:

    Core exchange must be sent with order. An $8700 core supplement will be charged with no core exchange. Typical lead time is 7-8 business days. ECU tuning is recommended for optimal power gains. All heads are assessed to ensure deck clearance and valve lineup. Chamber size and compression is not effected by CNC Port. (Compression stays at factory spec)

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    NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES

    Unless otherwise stated, some Weistec Engineering performance upgrades are sold for race car use only.