Supertech Single Valve Spring Kit for 350Z/G35 GrimmSpeed If using with the head

If using with the head on the block

AEM water or methanol injection filter can filter particulates as small as 40 microns

25 Mounting Bolts (Short)

Genuine OEM Mitsubishi factory replacement engine oil pan for the Evo 8/9

Supertech Single Valve Spring Kit for 350Z/G35 GrimmSpeed If using with the headSupertech single valve spring kit for VQ35DE VQ35HR 350Z and G35. Includes 24 springs and 24 titanium retainers. Please do all your research and consult your engine builder if necessary! Vehicle Fitment: 2003 2009 Nissan 350Z 2003 2008 Infinity G35 VQ35DE and VQ35HR Purchase Includes: (24) Valve Springs (24) Titanium Retainers Part Numbers: Pressure Seat: Details: SPRK TS2081 N35 55lbs @ 35mm Max Lift: 14. 50mm Coil Bind: 20. 70mm Rate: 9. 60mm