ARP (201-6302) Connecting Rod Bolt Kit

ARP (201-6302) Connecting Rod Bolt Kit

• BMW 4.4L M62/M62TU ROD BOLT KIT

BMW 4.4L (M62, M62TU) V8 M9 x 53MM UHL ARP 201-6302 Connecting Rod Bolt. Pro Series Wave-LOC Rod Bolts ARP2000. For the most severe applications, in conjunction with aftermarket I-beam rods, ARP has developed the “Pro” Series Wave-Loc bolts. These ultra heavy-duty rod bolts are made from a special material designated ARP2000. It has approximately 200% the fatigue life of 8740 chrome moly steel and has a tensile strength of about 220,000 psi, and is capable of more than 12,000 lbs. clamping force<p> </p><p>Because there are fairly wide tolerances in factory bolt holes, the bolt must be able to fit snugly and a knurl is applied. Unfortunately, these knurls cut deep into the bolt material, leaving sharp edges and enormous “stress risers” that promote failure. That’s why ARP developed the ARP Wave-Loc design that features symmetrical waves and provides an effective interference fit without creating stress risers in the bolt or the rod. </p><p> </p>