The ARP 145-4012 is a cylinder head stud kit for Mopar B/RB-Series engines. Studs are machined from chromoly steel with a black oxide finish and secured with hex nuts.
Specifications:
- Hex nuts
- Chromoly steel construction
- Black oxide finish
Applications:
- Mopar B/RB-Series engines
FAQ
What nut style does the ARP 145-4012 head stud kit use?
It uses hex nuts.
What material are the studs made from?
They are machined from chromoly steel and finished in black oxide.
Which engines does this kit fit?
Mopar B/RB-Series engines.
Is this a stud kit or a bolt kit?
It is a cylinder head stud kit, using studs and hex nuts.

