Skunk2 Ultra Series B Series Ultra Race Intake Manifold Runner Adaptor SKUNK2 RACING K SERIES 6.050 GSR ULTRA SERIES CON CONNECTING RODS Skunk2 Alpha Series Honda K24A Z Connecting Rods Skunk2 K Series 6.050" GSR Journal Width Ultra Connecting Rods 306 05 Skunk2 K Series Pro Series Exhaust Cam Gear Fuel Injector Connection. Skunk2 Racing's Ultra Series X Beam Connecting Rods are manufactured from Forged 4340 Chromoly Steel. All forgings are then fully machined and subjected to a battery of processes that include heat treating, shot peening, and magnafluxing to insure the ultimate in strength! Finally each set is balanced to within + 1. 5 grams. Our x beam design greatly reduces weight while maintaining strength by removing material and strategically shaping the beam; resulting in a very high strength to weight ratio, making them great for circuit and drag racing. The ribs straps on the pin end increase strength and stiffness under high engine loads and engine speeds. The step on the big end (crank journal side) is designed for strength, rigidity, and to maintain roundness. These features along with the 3 8" ARP 2000 hardware provide you with a top of the line connecting rod that can handle most anything you can throw at it. 6. 050" Long Rod w GSR Journal Width. Use with custom built K motors using aftermarket crankshaft with GSR connecting rod journal width. Not compatible with OEM pistons.