RB26 Cylinder Head Options

[2_Liter_Turbo]

I've been doing research on cylinder head tech lately, and most of the info I find is either spotty or conflicting, ha ha. Any solid tech resources available for my reading pleasure?

 

The specific question I have at the moment involves which blank canvas to start with. I've read that the R34 NUR heads had some differences in water jackets for better cooling and air flow is a bit improved, but I can't find any definitive proof of that, or even an OEM part number other than the standard (11040-05U00). I've been thinking of ordering a new cylinder head to mate with my new N1 block (Planning on doing a Nitto 2.8 build), but I wanted to make sure I start out with the best OE head option possible (that's still available) before sending it off for machine work. Is there a different head available that's better? Or is it just internet lore and every RB26 has the same standard base cylinder head?

 

[iruvyouskyrine]

If you are wanting to do decent porting then just grab any head as it won't matter much anyway.

If you don't want to do any head porting etc then an R34 flavour head would (presumably) be best to start with under the assumption that the later models had better heads. Is it worth the extra hassle/cost of sourcing an R34 head over any RB26 you can get? Probably not. Best bet is just to get some decent/light porting of whatever series of RB26 head you end up with/already have.

[2_Liter_Turbo]

Yeah, those are my thoughts as well. I was mostly curious if there was a different casting that had better cooling features or not.

[r32-25t]

Nope

[iruvyouskyrine]

As above, no head would have better or worse cooling/water jackets.

[2_Liter_Turbo]

8 hours ago, iruvyouskyrine said:

As above, no head would have better or worse cooling/water jackets.

That's good to know!