The ARP 140-5003 is a main stud kit for Small Block Mopar / B / RB-Series V8 engines (273-440), designed for 2-bolt main caps. Studs are machined from chromoly steel with a black oxide finish and secured with hex nuts.
Specifications:
- Hex nuts
- 2-Bolt main application
- Chromoly steel construction
- Black oxide finish
Applications:
- Small Block Mopar / B / RB-Series V8 engines, 273-440, 2-bolt main
FAQ
What nut style does the ARP 140-5003 main 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?
Small Block Mopar / B / RB-Series V8 engines (273-440) with 2-bolt main caps.
Is this a stud kit or a bolt kit?
It is a main stud kit, using studs and hex nuts rather than bolts.

