Rb26 Crank + Rb25 Rods And Pistons

[Killer4Ever]

Hey,,,, just refreshing my engine RB25 and looking into changing to RB26 crank to strock up my engine

BLOCK: RB25

CRANK: RB26

PISTONS: RB25

RODS: RB25

HEAD GASKET: 1.2

does that fit?? any help

[N1GTR]

No, it wont fit by 2mm. Just use stock RB25 crank.

[dori34]

is it a 33 gtst rb25? if so the rb26 crank will fit given that you use the Rb26 conrods & piston also and no issues with clearance from the head.

i tried this on a r34 rb25 neo and it didnt clear the head and required a custom piston made up.

[T04GTR]

just use rb26 pistons. 25 rods the the same length.

[Aberax]

is it a 33 gtst rb25? if so the rb26 crank will fit given that you use the Rb26 conrods & piston also and no issues with clearance from the head.

i tried this on a r34 rb25 neo and it didnt clear the head and required a custom piston made up.

just use rb26 pistons. 25 rods the the same length.

+1

I am currently doing a RB25 build with Rb26 Internals, link in my sig

[dori34]

just use rb26 pistons. 25 rods the the same length.

yeah if you want a weaker rod! unless its a rb25det neo rod then don't bother. just use gtr conrods if it comes with the package.

make sure u get some arp rod bolts and you are set.

[T04GTR]

lol. one would asume its allready got aftermarket rods doing a "freshen up"......

[DR 32R]

25 crank 25 pistons, 26 crank 26 pistons

[Killer4Ever]

youre right guys

I've already forged RB25 pistons and rods

that's why am wondring if I could put RB26 crank

what about 1.8 head gasket ?? does it make that work

or just back to RB25 crank

BTW, it is 33 gtst rb25

Edited September 1, 2011 by Killer4Ever

[dori34]

in that case just stick with the 25 crank mate.

[T04GTR]

the head gasket will have to be almost 3mm thick.. as the 25 piston pin height is about 2mm further down.

[Killer4Ever]

yep, I'll just stick with RB25 crank

thanks folks