RB30 Girdle

[ncrdbl]

RB30 Girdle

So ive got a rb30 block and i dont have a gridle to suit, can i just buy any rb30 girdle ? do they need machining ? if i buy a brand new girdle would i need to get it machined and honed to suit the bores of the block ? 

 

[Shoota_77]

You can buy a girdle if you can find one. It will need to be machined and then line bored to match your crank. 

It has nothing to do with the bores, just the crank. 

[Duncan]

Yep definitely needs machining to match the block

[ncrdbl]

cheers lads got told its impossible to find one ;/ because noone sells blocks with out them 

 

[Duncan]

absolutely, the block and cradle are a pair. Even when they come together from the the same engine they should still be measured and potentially machined to make sure the main bearing clearances are correct.

[ncrdbl]

On 10/4/2016 at 7:59 PM, Duncan said:

absolutely, the block and cradle are a pair. Even when they come together from the the same engine they should still be measured and potentially machined to make sure the main bearing clearances are correct.

so what can i do ? i have a block but no cradle, does that mean my block is useless ? do i just need to find a cradle and get it machined to suit block ? can i buy a new cradle from spool and get that machined to suit ? im lost 

[jmknights93]

3 minutes ago, ncrdbl said:

so what can i do ? i have a block but no cradle, does that mean my block is useless ? do i just need to find a cradle and get it machined to suit block ? can i buy a new cradle from spool and get that machined to suit ? im lost 

Would almost be easier to keep your eye out for another complete block.. There's quite a few on facebook sale pages at the moment.

[Duncan]

22 hours ago, ncrdbl said:

so what can i do ? i have a block but no cradle, does that mean my block is useless ? do i just need to find a cradle and get it machined to suit block ? can i buy a new cradle from spool and get that machined to suit ? im lost 

I know it's not great news, and no you are not lost, they are pretty much your choices.  I'd either buy a different block (probably cheapest option) or buy a new cradle if that's an option (I assume its aftermarket and a different style). If you choose the latter you need to get the block tunnel bored which I don't really like in these engines because it moves the crank relative to the oil pump

[Scott Black]

http://www.spoolimports.com/spool-billet-main-caps/nissan-rb/rwd-girdle-plate-with-bolts

[ncrdbl]

12 hours ago, Scott Black said:

http://www.spoolimports.com/spool-billet-main-caps/nissan-rb/rwd-girdle-plate-with-bolts

with that ill just need to tunnel bore it right ? my block is 87mm and already been machined and cleaned n decked, so im not looking to buy another block, most likey just buy that girdle and machine it to suit right ?

[Shoota_77]

I could be wrong but I'm pretty sure you need to buy the Spool girdle in conjunction with their main cap kit which is another $1600 or so.  I could be wrong but I'm pretty sure that's how it works.  You can get the mains on their own but not the girdle on it's own.

 

[Scott Black]

Above is correct

[Scott Black]

actually post above is right, that's made for there billet mains

[Pr0x1mity]

I'll have a spare bottom end soon if you want it fairly cheap. It's got new bearings and stuff.