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hey guys

im about to put my bottom end together, and dont know wether to upgrade the main cap bolts or to just use brand new nissan ones

is there an upgraded bolt for this?

or is the standard (brand new bolt) one more than capable?

thanks

mitch

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https://www.sau.com.au/forums/topic/266744-rb30-main-cap-bolts/
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  • 2 months later...
  • 1 month later...

Ha, i was reading this thread thinking, hmm Rob in NZ runs 7.7's odd and doesn't use studs..... and if anyone needed them.... ! Save your money, find something else to spend it on .(like thats hard)

Gary

  • 3 weeks later...
  • 2 weeks later...

I use original unbrako 12.9 bolts for mains. They have tensile strenght of ~1250MPa.. (~180.000 psi). This is pretty close to ARP bolts, for a fraction of the cost of real ARP bolts...

So looking for better bolts than std, std are pretty strong as RIPS prove, but still want better but think ARP is to expensive try unbrako 12.9 bolts.

Edited by nissan200sx.dk
  • 4 weeks later...
I use original unbrako 12.9 bolts for mains. They have tensile strenght of ~1250MPa.. (~180.000 psi). This is pretty close to ARP bolts, for a fraction of the cost of real ARP bolts...

So looking for better bolts than std, std are pretty strong as RIPS prove, but still want better but think ARP is to expensive try unbrako 12.9 bolts.

Im going to be using stock bolts in mine

Heck if rips can do it then its good for me

Im going for arp rod bolts and im done

  • 1 month later...
  • 1 month later...
sorry to dig up a old thread but does anyone know the Nissan part number for the main cap bolts? or do people just reuse their old ones?
The answer is in the 5 lines above your post. (Unbrako available from Moyes and Groves, WR Twigg/ Grossmans).

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