The Honda B-series and K-series are two of the most popular import engines ever made. Currently all ARP studs are produced from their 8740 chromoly and are capable of clamp loads between 180,000 and 210,000 psi. Working along side with ARP, we have designed a new head stud for the B and K series and manufactured in their premium L19 material. This will allow for an increased clamping load of up to 260,000 psi. These studs are design as a drop-in replacement for the OEM head studs and require no modification to your cylinder head or block. We have also implemented a new hex broach at the top of the studs for ease of application.
L19 material is primarily used in short track and drag racing applications where inertia loads exceed the clamping capability of ARP2000. Like most high strength, quench and temper steels â€“ L19 requires special care during manufacturing to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. L19 must be kept well oiled and cannot be exposed to moisture.
Included in each kit is complete set of L19 head studs, nuts, washers and ARP Assembly Lubricant. It should be noted that the nuts and washers in this kit are manufactured using ARP 8740 material as only the stud is subjected to the increased pressure.