Buying rb25/30 rebuilt engine but want to change pistons & rods

[vl_2010]

hi, so ive tracked down a rebuilt rb25/30 to go in my vl, now the only thing im curious about is the pistons and rods, the ones in there are for a turbo setup so not enough compression so im thinking of putting a piston ive found which gived 9-1 compression and a set of arias forged rods rated up to 10000rpm, im thnking of running 7500-8000 rpm. is it a simple swap over of pistons and rods? or something else will need to be done? any help appreciated

 

[ari666]

need to balance the crank to suit the new piston/rings/rod combo

 

[db_notso]

agreed and the obvious gaskets and all bearings to suit new caps to other crank...

 

[ari666]

can you clarify what an RB 25/30 is?

 

[Pub247]

rb30 bottom end rb25 twin cam head

 

[ari666]

ah i see. now clarify why you wouldnt fit a turbo to it

 

[walesy]

ah i see. now clarify why you wouldnt fit a turbo to it

exactly what i was thinking, just turbo it, the motor is already built for it