valve springs

[cambelt]

Hi , i wonder has anyone used 1jz-gte valve springs in a 2jz-gte, the 1j ons are fatter and taller , also seem to be firmer too.
Dave

[jeffro ra28]

Dave,
The 1jz springs are probably fatter and taller because the installed height is greater.
Sorry i cannot help you with your question. but i doubt the seat pressure is much different from 1jz-2jz. only reason i can think of is that 1jz turn more RPM.