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Hi everyone sorry to ask a silly question but, I’m looking for an rb30 crank bolt however, being in the US it makes it pretty difficult and arp bolts are no where to be found. I do have an arp bolt for my 26 and was wondering if I could use it if I tap the crank. The thing the bothers me is the length of bolt. Do you all know the length difference?

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Tap the crank ?!

The thing that should bother you is the fact you want to weaken the crank to use a stronger bolt.

Platinum racing on their US site have an M16 ARP bolt that is compatible with RB30.

https://platinumracingproducts.com/products/arp-fasteners-nissan-rb25-rb30-harmonic-balancer-bolt

On 1/24/2022 at 11:11 PM, BK said:

Tap the crank ?!

The thing that should bother you is the fact you want to weaken the crank to use a stronger bolt.

Platinum racing on their US site have an M16 ARP bolt that is compatible with RB30.

https://platinumracingproducts.com/products/arp-fasteners-nissan-rb25-rb30-harmonic-balancer-bolt

Though that is true I can’t find the washer :(

  • 6 months later...

I ordered a RB20/RB25/RB30 12 point ARP crank bolt from Platinum Racing. I plan on just using the stock washer. Anyone know the torque valve for the ARP bolt? I know the shop manual is 45nm/330 Ftlbs. With the ARP bolt I feel like the torque value would be less. I searched everywhere here in the states and had to order it from PR. They are very hard to come by here. 

On 28/8/2022 at 12:49 AM, TXR32 said:

I ordered a RB20/RB25/RB30 12 point ARP crank bolt from Platinum Racing. I plan on just using the stock washer. Anyone know the torque valve for the ARP bolt? I know the shop manual is 45nm/330 Ftlbs. With the ARP bolt I feel like the torque value would be less. I searched everywhere here in the states and had to order it from PR. They are very hard to come by here. 

Pretty sure that’s the rb26 torque spec, the rb 20/25/30 is a lot lower 

On 8/27/2022 at 7:52 PM, r32-25t said:

Pretty sure that’s the rb26 torque spec, the rb 20/25/30 is a lot lower 

I'm confirming this. If my memory is correct, I believe it was somewhere around 240ftlb's. 

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