SP Components is highly regarded for their reinforced H-beam rods, which boast exceptional strength and affordability. These lightweight yet sturdy rods feature an enlarged mating surface, allowing them to withstand heavy loads with ease. They are designed to replace BMW part #11247646892, #11247843237,  #11247603480, #11247565233, #11247845511, #11247516322, and #11240150249 in the BMW N63 and S63 engines with a 138.5 mm length. In addition to their reliable construction, these rods come with balanced matching weights and ARP rod bolts included. Can withstand up to 8500 rpm. Furthermore, they are capable of handling high horsepower forced induction engines that produce up to 1000HP.  ARP Connecting Rod Bolts Included. None-tapered design small end. Will NOT work with factory pistons.