Toyota Supra 2JZ Billet Crankshaft 3.4L Stroker
ZRP crankshafts are manufactured from aerospace grade 4340 solid billet steel and no compromises have been made to the quality of the material, in order to ensure the best possible product. These are designed carefully, from our vast experience, to provide the best possible engine performance and the production process consists of very strict inspections to ensure that they have the best quality and tight tolerances for perfect fitment.
Supra crankshafts have undercut counterweights with “bridge” to minimize weight and reduce rotating mass while maintaining rigidity in center high stress areas.
We use CNC machining for precise results, multi-stage heat treatment, ION (Plasma) Nitriding for hardening and heat treatment for superior wear resistance, Magna-fluxing for flawless surface finish, shot peening for stress release, Micro-polishing for longer bearing life. Finally, they are sonic tested and X-rayed to ensure a reliable end product.
Crankshaft design features straight oil holes for better oiling of the rod journals and are balanced to 2gr.cm +/- 0.1 using the state of the art Sunnen machines.
Balance report included in the package.
All ZRP Crankshafts are fully balanced and ready to install.