Modalworks Mercedes C63 E63 M177 Performance Head Studs Upgrade your M177 engine with this Modalworks Spec ARP Pro-Series head stud kit, precision-engineered for high-performance builds. Proudly made in the USA by ARP, these studs are crafted from ARP 2000 alloy steel and deliver the strength and reliability needed for high-boost, high-horsepower applications. OEM head bolts are prone to stretching under extreme pressure, which can cause cylinder head lift and head gasket failure. This Pro-Series kit eliminates that risk with studs rated at an industry-leading 220,000 PSI tensile strength. Designed for repeat use, these studs are a durable, race-proven solution that can withstand the demands of both street and motorsport environments. Kit Includes: 20 ARP 2000 head studs 20 high-strength nuts 20 hardened washers ARP Ultra-Torque fastener assembly lubricant Key Features & Benefits: Made in the USA by ARP Material: ARP 2000 alloy steel, heat treated alloy steel Tensile Strength: 220,000 PSI Thread Type: Rolled threads for improved fatigue strength Block Support: Tapered stud base for optimal load distribution and thread protection Precision Fit: Stud length and thread engagement are specifically designed for superior end seating in the M177 engine Why Choose ModalWorks Head Studs Each stud is engineered with exacting tolerances to ensure consistent torque values and proper head sealing. The optimized length and thread design provide superior seating in the block and head, minimizing distortion and maximizing clamping force. Combined with matched high-strength nuts and washers, this kit is the ultimate solution for keeping your heads locked down for big power builds.
