At what point is it really necessary to upgrade the std Cosworth main bolts to ARP ones?

I'm starting to build up my engine ( GT30R , ported head, cams etc), and i'm not sure about the main bolts.

Already using ARP rod bolts but how strong / good are the std main bolts?



Regards,


Bas

 

 

i havent got them and i am pushing 511 bhp

 

So, it is not really necessary for 500 Bhp. I did a search but could't find any information about this.

So if the std main bolts are really that good, then i think i will stick with the std ones.
Are the std ones re-usable?


Thanks



Regards,

Bas

 

Imo if you are worried BUY them...... for the sake of Ł100?? ish surely it's worth it just for piece of mind...... Mind you where do you stop with ARP they do bolts for everything...

 

anyone heard of the standard bolts going?

 

I think not