Jump to content
SAU Community

Recommended Posts

Hi

I would just like to know what is the deal with head swaps amongst the RB family ?

In particular an RB26 head on a NEO RB25 ?

Read about this on the first Top Secret demo GTT....would like to know what is involved ie is it pretty much bolt on ? or would it be easier to just get an RB26 in the first place ?

Besides the plenum and fuel rail etc....anything else that needs to be changed along with the headswap ?

Also just out of curiousity....excuse my ignorance.....but what combo makes an RB24 ? Its based on an RB20 right ?

Edited by shonen
Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/
Share on other sites

NEO RB25 also has solid lifters.

If you change the head to RB26 then most of the rest would be different, wiring particularly would be an issue.

I reckon you would be better either putting in a full RB26 or keeping your head and putting an RB30 bottom end under it.

Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/#findComment-1536259
Share on other sites

haha cool...thanks adam.

Its something Ill definetly consider if I keep the car....

So with an RB30 bottem end....what would the capacity of this RB30/RB25 hybrid be ?

gonna decide at the end of the year whether or not to sell.....

going to a 4 cylinder.....petrol prices are crazy these days and I live too far out to keep up with it.....

yes yes im a sellout/soft etc etc...heard it all :(

Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/#findComment-1536317
Share on other sites

RB24 is made by using a slightly modified RB20 block with an RB26 crank, RB26 rods, and slightly oversize pistons (custom to suit the 26 rods) it still uses RB20 head but with the longer stroke and slightly larger bore it is now 2.4 litre RB20. ;)

for your car go the 26 swap. Or even 26/30. :D

Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/#findComment-1536989
Share on other sites

haha cool...thanks adam.

Its something Ill definetly consider if I keep the car....

So with an RB30 bottem end....what would the capacity of this RB30/RB25 hybrid be ?

gonna decide at the end of the year whether or not to sell.....

going to a 4 cylinder.....petrol prices are crazy these days and I live too far out to keep up with it.....

yes yes im a sellout/soft etc etc...heard it all :P

A 4 banger can drink just as much if you have a lead foot!

Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/#findComment-1537990
Share on other sites

Honestly though, anyone who buys a skyline has to be a little bit of a lead foot themselves :D

Alright alright...the petrol thing was just an excuse :P

lookin at an sti or an evo 7 next year sometime........car is getting old......has me thinking.......if I do end up keeping it then I wanna got the whole nine yards and prob go for the 26 swap......until then I want to stop spending money on car for a little while.

so just doing some research while I save for the time being.... so one last question for now regarding the 26 swap. Would a GTR power fc be adequate or would I need to go for something like a Haltek or motec etc ?

anyways thanks for the info guys......

Link to comment
https://www.sau.com.au/forums/topic/84754-head-swapping/#findComment-1538492
Share on other sites

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

    • Welcome to Skyline ownership. Yes, it is entirely possible parts websites get things wrong. There's a whole world of inaccuracies out there when it comes to R34 stuff (and probably 33 and 32). Lots of things that are 'just bolt on, entirely interchangable' aren't. Even between S1 and S2 R34's. Yes they have a GTT item supposedly being 296mm. This is incorrect. I would call whoever you got them from and return them and let them know the GTT actually uses 310mm rotors. Depending on where you got them from your experience and success will obviously vary.
    • Hi...a bit a "development" on the brakes. I spoke to the guys where i get brakes from...and they are saying that 296mm EBC are for R34 GT-T. I then went to their site: https://www.ebcbrakes.com/vehicle/uk-row/NISSAN/Skyline (R34)/ and search for my car(R34 GT 1998 - it has GTT brakes) and it show me this USR1229 number and they are rly 296mm rotors... So now iam rly confused... The rotors i have now on the car are 310mm asi shown... So where is the problem? Does the whole EBC got it wrong or my calipers are just...idk know what?  
    • Oh What the hell, I used to get a "are you sure you want to reply, this thread is XX months old" message. Maybe a software update remove that. My bad.
    • This is a recipe for disaster* Note: Disaster is relative. The thing that often gets lost in threads like this is what is considered acceptable poke and compromise between what one person considers 'good' looks and what someone else does. The quoted specs would sit absurdly outside the guards with the spacers mentioned and need  REALLY thin tyres and a LOT of camber AND rolling the guards to fit. Some people love this. Some people consider this a ruined car. One thing is for certain though, rolling the guards is pretty much mandatory for any 'good' fitment (of either variety). It is often the difference between any fitment remotely close to the guards. "Not to mention the rears were like a mm from hitting the coilovers." I have a question though - This spec is VERY close to what I was planning to buy relative to the inboard suspension - I have an offset measuring tool on the way to confirm it. When you say "like a mm" do you mean literally 1mm? Or 2mm? Cause that's enough clearance for me in the rear :p I actually found the more limiting factor ISNT the coilover but the actual suspension arms. Did you take a look at how close those were?
    • @GTSBoy yeah sorry i know thery are known for colors bud those DBA are too in colors 🙂 Green will be good enough for me  
×
×
  • Create New...