Are RB26/25 Valves, Valve Springs and Retainers interchangeable?

[SoCalude98]

I see a lot of companies offering valvetrain kits for the RB26 but not really too many for the RB25. Im curious if the valvetrain (valves, valve springs and retainers) from/for the RB26 motors can be used in a RB25 motor?

[Nameless EJ6]

I don't think so. The valvetrain in the RB25 is hydraulic to my memory..

[FAST-DATSUN]

You can use the valve springs!!!!!!!

[TheSnail]

i dont know about this on the rb25 but RB26 cams and pulleys fit RB20's, there is more benefit from this if you also use the RB26 solid lifters to replace the RB20 Hydraulics

[93RPS13]

how hard is the swap to solid cam lifters from the RB26, and are you shore that the pulleys are interchangable with the RB20?

Also i have heard people swap the vavle springs and "TheSnail" is correct that the RB20 is hydraulic, just to let people know that the OEM cams from the RB26 work in the RB20

[gani]

GTR cams fit with the RB20 hydraulic followers. I don't think you need to change to solids anyway. The bottom end rpm limit is more of an issue than the hydraulic follower rpm limit.The idea of using standard GTR cams is to get a noticeable benefit for not much cost in parts or labour