Product Description
This 4340 billet crankshaft is a high - performance upgrade. It undergoes stress relief, shot peening, magna flux inspection, and multi - step nitriding heat treatment for top - notch performance. The fully profiled counterweights reduce windage in the crankcase, lowering oil resistance and enhancing rpm potential. Key specs: 83mm stroke, 52mm rod journal, 60mm main journal, and it weighs 18.9 Lbs.
Using this crankshaft is straightforward. Just install it according to your Subaru EJ275 (STi) engine's manual. When handling it, be careful not to drop or scratch it as this could affect its performance. For maintenance, regularly check for any signs of wear or damage. Make sure to use the right type of oil for smooth operation. If you notice any strange noises or vibrations during engine operation, have the crankshaft inspected right away.