1JZ vs 2JZ Head

[INFO]

"The 1JZ head has smaller intake ports than a 2JZ. With the smaller ports come higher port velocity helping mid range RPM torque. The tradeoff is High RPM cylinder filling. It's harder to fill the cylinder through a smaller port."

Michael Angel
http://www.insanespeed.net/
Insane Speed
Tuner and Engine Builder
6915 Speedway Blvd
Las Vegas, NV 89115