8mm Head Stud Set, for Single Port VW, Standard Length

EMPI 8mm Chromoly Head Stud Set for Single Port VW Engines

Fitment and Compatibility

This EMPI head stud set is engineered specifically for Single Port Volkswagen air-cooled engines. These 8mm studs are manufactured to standard length, serving as a direct high-performance replacement for OEM part number 043-198-035SP. They are suitable for VW Beetles, Karmann Ghias, and Type 2 Buses equipped with single port cylinder heads. Constructed from high-grade chromoly, these studs provide superior clamping force and resistance to fatigue compared to stock hardware.

Professional Tech Tips

Clean the Case Threads: Before installing your new chromoly studs, ensure the engine case threads are completely free of debris and old oil. Use a thread chaser rather than a traditional cutting tap to clean the holes; a chaser cleans the threads without removing critical metal, ensuring the strongest possible connection to the case.

Follow the Torque Sequence: To prevent cylinder head warping and ensure a perfect seal, always tighten the head nuts in the factory-specified cross-pattern. For 8mm studs, the final torque is typically 18 ft-lbs. Perform the tightening in two or three incremental stages rather than jumping straight to the final torque value.

Lubricate for Accuracy: Apply a light coat of engine oil or assembly lubricant to the top threads of the studs and the seating surface of the hardened washers. This reduces friction during installation, allowing for a more accurate torque reading and ensuring that the clamping force is consistent across all studs.