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    Camshaft Phaser Bolts, M156

    sku:01-156-01033-0

    Availability: In stock

    $152.00

    Camshaft Phaser Bolts, M156

    The M156 / M159 cam phasing gear is bolted to the camshaft with no keyway, relying on just clamping force to hold parts in sync. Factory cam bolts are "torque to yield" and are very weak in material.

    To solve this issue, Weistec offers M156 / M159 Camshaft Phaser Bolts. Manufactured by ARP to be twice as strong as the factory camshaft phaser bolts. With the Weistec M156 Camshaft Phaser Bolts, the phasers can be bolted to the camshafts with significantly increased clamping force ensuring that they will never spin out of proper installed position.

    Whether you are installing Weistec CNC Ported Heads, assembling a completely built engine, or simply upgrading to M159 valve buckets, these bolts are a must.

    Key Features:

    • 200,000 psi Tensile Strength

    • Direct replacement / bolt in for M156 engines

    • Increased clamping force on Phaser to Camshaft connection eliminating spinning

    • Reusable, unlike the factory bolts which are “one time use”

    PDF Filem156_arp_cam_phaser (348.1 KB)Download

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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.