Our take
Like all of their products, Ferrea's beehive valve spring sets the standard for aftermarket performance on the 2JZ. The beehive spring kit is recommended for any 2JZ utilizing aftermarket camshafts. This kit reuses factory spring shims but REQUIRES the use of Ferrea Titanium Retainer kit E12029. You can add the retainer kit with the dropdown menu above, or it can be found separately here.
We recommend this kit up to 1,200whp and 45 psi. If more boost is required, use the dual spring with high pressure locators available here.
MANUFACTURER DESCRIPTION
Harmonics or high frequency fatigue is present in all racing engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear. Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicon steel.
Our springs are heat-treated and stress relieved, which dramatically increases the spring’s life. Our valve springs provide the stability needed for high lift, high rpm racing engines, while minimizing the load loss for today’s aggressive valvetrain combinations.
Developed from premium grade super-clean PAC Alloy materials, these beehive valve springs are progressively coiled with tighter tolerances, heat treated, stress relieved, and multistage shot peened for extended life and durability.
PN: S2021 -- TOYOTA SUPRA (1994 - 1998) 2JZGE - 2JZGTE BEEHIVE VALVE SPRINGS 3.0L I/L 6 Cyl- DOHC 24 Valve (2JZGE-2JZGTE), This Spring requires Ferrea Titanium Retainer # E12029 and Factory Spring Shims.
Type/Material/Application: Single Beehive Ovate. PAC Alloy/Street Performance.