Valve Spring Upgrade

Lextreme is proud to present this valve spring upgrade for your V8 engine at an affordable price. This whole set includes 32 springs and are made in the USA. A lot of R&D have been done on these springs and they were found to work well on stock or slightly modified engines. These will work on 1-3UZ-FE engines from 1990 to 2006. These springs are rated at 82 lbs. seat pressure and 123 lbs. lift pressure at stock cam lift.

These springs will work with stock retainers, locks and cams and will even work with modified 2UZ-FE cams with .400" lift. (stock is .310" lift) without coil binding. The last two pictures show the spring compressed rate at 1.360" (which is seat pressure). These springs yield a 33% increase in seat and lift pressure. The rate of life for these springs is 140 lbs.