BRAND NEW IN BOX
You are bidding on a Brand New Set of ARP
Includes:
ARP - Main Stud Kit
ARP - Head Stud Kit
FITMENTS : BMW 2.5L(M50) & 3.2L (S52US) inline 6
1-) Part Number: ARP - 201-5000
These ARP main studs are made from 8740 chromoly steel and have a 190,000 psi tensile-strength rating. They are precision centerless-ground and thread-rolled to Mil-S-8879 specs, with a black oxide finish for corrosion resistance. The kits come complete with hardened washers and high-strength hex nuts.
2-) Part Number: ARP - 201-4302
Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.