VTEC on your 2JZ Supra? Check the Video! Drag & Track Misc by turboandstance - February 21, 2017May 13, 2018 September 2016 the guys from Suprasport.nl finished the final prototype of their billet head for #2jz engines. The head features two cam profiles, a short duration (advertised: 245 degrees) 8.25mm lift for idling and cruising and a long duration (advertised: 300 degrees) 13.25mm lift for high RPM and on-boost situations