For the M50 Guru's

Hey Guys

I need some advice from The M50 Guru’s. I am in the process of ordering a set of forged conrods and pistons however have come across the following problem

The E36 325i Vanos motor and the E36 323i both share the same motor M50b25tu.

The M50b25tu is the only engine from the M5x series to have 140mm conrods as opposed to 135mm rods like the rest of the range which makes it unique however the screw up is when it comes to ordering aftermarket rods the only people that make them are Carrillo and CX racing (Carrillo being too expensive and Cx racing will be on the borderline of the power I want to make) . The brands that I have been looking at such as K1 and eagle only make the 135mm rods for the M5x series engines.

Now for the question

Can I use aftermarket 135mm conrods and pistons for the M50b25 with my M50b25tu crank? I am uncertain if the cranks are the same? However I do know that the 325i non Vanos had a compression ratio of 10:1 and the 325i Vanos with 10, 5:1. Any help or advice will be appreciated.

This doesn’t seem to be a well-documented problem.