Supertech Nissan RB25DE/DET (w/Hydraulic Lifters) Single Valve Spring Kit Universal it is the installer's responsibility

it is the installer's responsibility to verify fitment

In the top end kit you’ll find everything you need for a head change

From the one-piece sealed housing - that utilizes our all new Injen Twist-Lock System (Patent Pending) to securely attach a massive SuperNano-Web Dry air filter in place - all the way down to premium hardware

Lobe Separation: 115

Supertech Nissan RB25DE/DET (w/Hydraulic Lifters) Single Valve Spring Kit Universal it is the installer's responsibilitySingle Valve Spring Kit Type: Single Spring Press. Seat: 78 @ 30. 60mm Max Lift: 10. 60mm Coil Bind: 20. 00mm Rate: 7. 30 lbs mm Retainer: RET NVG1015 T1 Spring : SPR 1012S RB25 Seat Locator : SS 2820 E HYDRAULIC LIFTER KIT Engines Nissan Gt t 6cyl 2. 5l Turbo RB25DET Nissan Gts 25 6cyl 2. 5l RB25DE Nissan Gts25t 6cyl 2. 5l Turbo RB25DET