Jump to content
SAU Community

Recommended Posts

Have for sale a complete R33 RB25 variable cam timing head.

Has been ported to remove cast marks and restrictions mainly in the bowls behind the valves. Has been decked and combustion chambers smoothed out & cc'd. It has been modified to be used with an RB30 block with the vct pluged and redrilled and tapped with a fitting for external oil feed line. There was also a small amount of weld at the coolant gallery at the edge of the head to allow more contact area for a better seal on the RB30 block.

It comes with all sensors, wiring, coils, injectors and rail, all covers, inlet manifolds, cams, springs, Lifters and valves. Everything for a conversion to RB30DET.

This mod can also be reversed for normal RB25 use if required.

Was going to use it on my own block however I have decided to go a different way. After $1000 ono

Any questions or pics please email me [email protected]

:matrix:

Link to comment
https://www.sau.com.au/forums/topic/82385-rb25-head-complete/
Share on other sites

  • 4 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Yeah, you are right. It seems easier and more reasonable to boost the engine. And as you said the blocks are very similar but the cylinder bores are different.
    • Sound logic, but in actuality way more illegal than just having the wrong pipe. Normally, doing something like that would be forgery. Meaning you may have certain documentation for vehicle parts, but the actual parts are different ones and you just assign them the numbers and badging from the documents. But nevermind that. Nonetheless, I AM curious if this pipe was ever made by any official manufacturer this way, because I honestly am not familiar with this pipe layout and shape. As I will be putting on the HKS Silent Hi Power once my exhaust gaskets arrive, as long as it sounds right I will just roll with this front pipe. I can always order the actual Mines part if I run into legal issues. It would be an unnecessary expense as there is lots of other problems I have on this car as of now.
    • So, weld a plate with the Mines logo laser cut into it, onto it. Instant Mines pipes, whether they were or weren't originally.
    • I don't know if the blocks are "the same". They will be very very similar. Obviously, either the bore or the stroke is going to be bigger on the 20. If the bore is bigger, then the 18 head is unlikely to fit properly. If the bore is the same, then you can almost certainly fit the CA18 head, but there migth be a few fun things you have to do to make water galleries (or other things) line up properly. Or... it could just be real easy. Is it worth the effort? Almost certainly not. You can make nearly as much power on a 2 valv ehead as you can on a 4 valve. There's not any "magic" in a 4 valve head.
    • Yes, me too!!!!  I need to find a something that has all the abbreviations for what these cars have LOL
×
×
  • Create New...