Lextreme II
Active Member
Gents,
We have done lots of research on this. My engine builder and I came up with these springs. They are rated at 82 lbs seat pressure and 123 lbs lift pressure at stock cam lift. Please see data below. These springs will work on ALL UZFE engines from 1990-2006.
We have them available for our members at $200 per set (32 springs). We will sell them at $250 per set in the future. Shipping will be $10 to anywhere.
These springs will work with stock retainers, locks and cams. These springs even work with modified 2uzfe cams with .400" lift. (stock is .310 lift") without coil binding.

Below are some pictures of the springs. The last two pictures show the spring compressed rate at 1.360" (which is seat pressure). The rate of life for these springs is 140 lbs.
We have done lots of research on this. My engine builder and I came up with these springs. They are rated at 82 lbs seat pressure and 123 lbs lift pressure at stock cam lift. Please see data below. These springs will work on ALL UZFE engines from 1990-2006.
We have them available for our members at $200 per set (32 springs). We will sell them at $250 per set in the future. Shipping will be $10 to anywhere.
These springs will work with stock retainers, locks and cams. These springs even work with modified 2uzfe cams with .400" lift. (stock is .310 lift") without coil binding.

Below are some pictures of the springs. The last two pictures show the spring compressed rate at 1.360" (which is seat pressure). The rate of life for these springs is 140 lbs.