K1 - H-beam connecting rods for BMW engine.

Mounting H-profile connecting rods increases the durability of the motor. These connecting rods are typically mounted when turbo or compressor is mounted or the engine has to take many turns.

H-profile connecting rods on engine with the following engine codes:

M20, M50, M52, M54, S50, S52

Data on H-profile connecting rods:

Pivot diameter: 22mm.
Length of connecting rod: 135mm.

The connecting rods are very durable and are fitted with ARP 2000 bolts