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Description

Weistec Head Studs, M157

Weistec has exclusively partnered with ARP, the top name in performance engine hardware. Head studs are used to fasten the heads to the block in place of the factory head bolts. The connection between the cylinder heads and the block is a complex part of the engine. Coolant and oil flow back and forth between the block and the cylinder heads. The head gasket keeps the coolant, oil, and air charge in the cylinders separate from each other with the help of pressure generated by the head bolts. The factory head bolts are “torque to yield” meaning that when installed, they are tightened to the point where they permanently stretch.

With 260,000+PSI of tensile strength, our ARP 625+ head studs are able to hold down the heads with far greater pressure than the factory head bolts, without permanent stretching. The result is a more reliable performance engine. Quality head studs are among the top items in the list of parts that allow an engine to reliably reach high power levels.

Key Features:
– 260,000 psi Tensile Strength
– 255,000 psi Yield Strength
– Complete replacement of factory head bolts
– Improved Head to Block connection eliminating leaks
– Reusable, unlike the factory bolts which are “one time use”

Vehicles Applications:
– 2018 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2017 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2016 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2015 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2014 Mercedes-Benz G63 AMG 6X6 6X6 (W463) Twin Turbo 5.5L V8 (M157)
– 2014 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2013 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)
– 2012 Mercedes-Benz G63 AMG Base (W463) Twin Turbo 5.5L V8 (M157)

 

 

Notes: This part may be considered a Special Order if custom-made, low volume, or not something we generally stock. There may be a cost for Air Freight, Customs, Taxes, and Duties. Your card will not be charged during Checkout; only an Authorization will be obtained. If necessary, we will contact you with details before processing the order.  Please review our Terms & Conditions before ordering.

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