ARP - Connecting Rod Bolt Kit - 8v / 16v / 1.8t
Heavy Duty Rod-bolt kit for all 4cyl VW Applications from 1983 up to 1999 (incl early pre-00 1.8t). Designed for high performance racing and forced-induction / nitrous applications, a must for any ultra-high performance rebuild.
ARP manufactures replacement rod bolts for many popu- lar import and domestic Sport Compact engines that are made of premium grade 8740 chrome moly steel and heat treated to a nominal tensile strength of 200,000 psi. Threads are rolled after heat treat to ensure optimum fatigue strength. They are far superior to OEM fasteners in terms of durability and service life – fully capable of handling the extra stress of high combus- tion pressure engines. For extreme applications, rod bolts made of special ARP2000 material (rated at a 220,000 psi nominal tensile strength) are available, including those with the patented Wave-Loc design. Special high strength bolts also available for aftermarket connecting rods. Call for details.
tech tip: Measuring Rod Bolt Stretch The most accurate method of obtaining the correct torque load on a connecting rod bolt is through measuring the amount of bolt stretch. This is preferred to using a torque wrench. See chart on pages 25-26 for the appropriate amount to stretch a rod bolt over its relaxed state. ARP’s rod bolt stretch gauge (see page 96) can also be used to determine the condition of a rod bolt. If it has permanently stretched .0005˝ or more, the bolt has been compromised beyond its yield. Replace it immediately! Use the rod bolt stretch chart shown below (or a version thereof) to keep track of the bolt’s length at installation and prior to removal.
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