Rb25 vs neo

[BlewByYou]

Just seeing if anyOnes put a rb25 head on a rb25 neo?

[Sileighty_85]

bolts on like stock...

might have to modify the Non NEO IM unless you have the NEO IM

[BlewByYou]

That's awesome news.. But neo Im ?

[feito]

intake manifold

[BlewByYou]

Oh sh!t :/ blonde moment

[whatbrokethistime]

bolts on like stock...

might have to modify the Non NEO IM unless you have the NEO IM

Elaborate please...
-compression height on neo vs S2
-valve reliefs cut into neo pistons for neo cam profile and solid lifters, (longer valve stem)
Combustion chambers are smaller on neo, higher compression when used with the flat , non valve relief pistons of the S1 and S2 RB25.

Yes the head would bolt up. But the question is, what is your piston to valve clearance?

[BlewByYou]

R34 RB25DET NEO Cylinder Head (http://www.rawbrokerage.com/R34-RB25DET-NEO-Cylinder-Head-r34-rb25neohead.htm)
Raw show that it fits with mods but I'll call the
Tomorrow and see what's all needed for the hybrid build.

[Sileighty_85]

Remedy for that is a thicker head Gasket if you wanna be ghetto or get some new pistons.

[BlewByYou]

Ok talked to Raw very helpful guys there. Basicly to put a rb25 head on a neo it bolts right on. Will lower the compression alot so a.030 head gasket will be needed. No body has done this that we are aware of so this will be the first. I'll do a write up on it if anything. Why do this bc cheaper lol.