STD Nissan components

[Roy]

I thought it may be a good idea to come up with some sort of databse of component part weights.

Of interest to me, if someone can give accurate answers, is the weight of std Nissan:

- RB20 pistons

- RB26 conrods, also what is the std gudgeon pin diameter (21mm?)

If you have any specs on std RB25 / 30 rods pistons etc feel free to add

[Clint32]

ill try and get some info for you just need some decent measuring equipment, i have rb25 and 26 rods, and stock and forged pistons for rb25. the rb26 rods are much thicker than the 25 ones in most areas and their weight difference is noticable

[Roy]

So are these weights heavier or lighter then the std Nissan Gear

Aftermarket RB30 Con Rod - 580 grams

Aftermarket RB30 Piston 87.5mm - 338 grams

[Roy]

So nooone out there that has built up an RB30DET paid any attention to the weights of the gear they were putting in?

RB25 rods are apparently lighter the RB26 rods, but actual numbers would be desirable