Back to Top

Compare Products

You have no items to compare.

    M156 Head Studs and Maintenance Package

    sku:M156 Head Studs and Maintenance Package

    Availability: In stock


    M156 Head Studs and Maintenance Package

    Prevent Head Gasket Failure, Head Bolt Failure, and Engine Damage

    This is a complete package for strengthening the weak points of the M156 top end.  Both known issues, the weak head bolts and the excessive wear off the valve buckets,  are addressed by replacing the head bolts with Weistec ARP M156 Head Studs, installing the camshafts with all ARP hardware, and switching the valve buckets to new OEM SLS Valve Buckets.


    Key Features:

    • M156 ARP Head Studs

    • M156 ARP Cam Cap Bolts

    • M156 ARP Cam Phaser Bolts

    • SLS Valve Buckets

    • Solution for weak factory head bolts

    • Prevent Head Gasket Leaks and Engine Damage

    No files available.

    Use spaces to separate tags. Use single quotes (') for phrases.


    Weistec Engineering performance upgrades may be used solely on vehicles used in sanctioned competition which may never be used upon a public road or highway, unless permitted by specific regulatory exemptions. For state specific details please visit the following website.
    It is the responsibility of the installer and/or user of the product to ensure that it is used in compliance with all applicable laws and regulations. If a product was purchased in error, do not install and/or use it. The purchaser must arrange to return the product(s) for a full refund.
    This policy only applies to installers and/or users who are in the United States, customers who reside in other countries should act in accordance with their local laws and regulations.
    All performance modifications and installations are at the customer’s own risk. Weistec Engineering holds no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products.