Conn. Rod bolt and main bearing cap bolts

[Justin300sl]

Got my new je pistons in for the turbo m104. Engine should be reassembled in a few weeks.
https://imgur.com/a/j8i6CMn

All bolts for connecting rods, main bearing cap bolts, and flexplate bolts all measure within spec., but I'm not sure If i should still replace them.

Any strength benefits of replacing the bolts or am i just being paranoid? Any thing better than stock for connecting rod bolts? M9x1 x 52mm
Price at dealership is over $450

[Justin300sl]

Gonna end up ordering bolts for peace of mind, about half the price on pelican.

https://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2016.cgi?command=DWsearch&description=111-038-00-71-MBZ


Any reason i shouldnt go with the febi bilstein connecting rod bolts?

[97 SL320]

Have you looked at ARP or similar? There might be something off the shelf from another engine.

The stock bolts are probably $$ due to low demand.

[Justin300sl]

I've checked there online catalog but haven't called them.
The inline bmw bolts are close but are m9x1.25

[Tony H]

I doubt there would be anything better than stock by any company-I would not worry about the stock hardware. I have never heard of any Mercedes rod or main bolt failing.

[sm. pelle]

Just to be shure put new OE bolts.
Friends om605 had rod bolt failure(tough he had bit extreme rpm's, 7k)