Eagle's Subaru connecting rods are crafted from top - grade 4340 forged steel. They go through a series of strict quality checks including x - raying, magnafluxing, sonic testing, and shot - peening to guarantee top - notch quality and strength. These rods come in weight - matched sets with a difference of just +/- 1 gram from end to end. The STI connecting rods are forged in two pieces in China and then sent to the US for final machining and testing, offering a cost - effective yet durable and precise option. The EJ257 STI rods are equipped with ARP 3/8in 2000 rod bolts, which can handle high power and boost. They have a rod length of 5.137in. Please note that these connecting rods are not compatible with OEM Subaru pistons. Part number is CRS5137S3D. Torque them to 43 ft - lbs using only ARP moly lube. Key features include 3/8' ARP 2000 bolts, forged 4340 steel material, a center - to - center length of 5.137', a pin size of 0.906', a pin end width of 0.842', a rod journal of 2.047', a housing bore of 2.165', a big end width of 0.842', a typical weight of 530g, and they are bushed for a full - floating piston pin.
Using these Eagle connecting rods is straightforward. First, make sure to check that they are the right fit for your Subaru model, as they don't work with OEM Subaru pistons. When installing, use ARP moly lube and torque the rods to 43 ft - lbs. This will ensure a proper and secure fit. As for maintenance, keep an eye on the overall condition of the rods regularly. Look for any signs of wear or damage. If you notice any issues, it's best to get them checked by a professional. Since these rods are made of high - quality forged 4340 steel and have been through strict quality tests, they should last a long time with proper use and care.
