Mopar Head Bolt Kit - 5.7/6.1L Hemi

The ARP Mopar Head Bolt Kit for 5.7/6.1L Hemi engines (Part Number 147-3901) is designed for high-performance applications, making it ideal for enthusiasts and professionals working on Gen III Hemi cylinder head assemblies. This kit is essential for those replacing head gaskets or enhancing engine performance, ensuring reliability under extreme conditions.

Constructed from durable chromoly steel and finished with a black oxide coating, this head bolt kit provides superior clamping force and material integrity. The 12-point head design allows for precise torque control during installation, reducing the risk of rounding compared to traditional 6-point bolts. This construction is specifically engineered to withstand high cylinder pressures, making it suitable for boosted engine builds.

Dodge, Chrysler, and Jeep Hemi platform owners will find this kit invaluable for maintaining head gasket sealing and block deck integrity across various RPM and boost levels. Whether you're building a new engine or performing machine work, this head bolt kit ensures that your Hemi engine performs at its best under demanding conditions.