This ARP cylinder head stud kit is built for GM 2.2L Ecotec 4-cylinder engines, using undercut chromoly studs with a black oxide finish and 12-point nuts for consistent clamping load under high cylinder pressure.
Specifications:
- 12-Point Nuts
- Chromoly Material
- Black Oxide Finish
- Undercut Studs
Applications:
- GM 2.2L Ecotec (4-Cylinder)
FAQ
What are these head studs made from?
They're made from chromoly steel with a black oxide finish.
What nut style is included?
The kit uses 12-point nuts for a secure, high-torque fit.
What does "undercut" mean?
Undercut studs have reduced shank diameter below the threads, allowing more even stretch under load.
Which engine is this kit designed for?
This kit is designed for the GM 2.2L Ecotec 4-cylinder engine.

