Arlows 6x Steel Connecting Rod 135mm BMW M30 B35 Motoren ( H-Beam )

  Audi Con-Rod Set

Fitting at following BMW M30 B35 engines:

- BMW 3,5L 635CSI / 535i / 735i / E24 / E28 / E23 / E32 / E34

This highquality con-rods are made of 4340 steel (40CrNiMoA).

The H-shank enables maximum stability during minimum weight.

Thereby they're perfectly suited for high-engine-speeds.

At first this con-rods got many times hardened to achieve an durability of HRC35-38.

Finally they got shot-blasted to strenghen the surface density to the maximum.

Before all of our con-rods are 3D designed and finally CNC-milled, it's possible to simulate a lot of charge states and tensions.

The small-end-bearing is made of bronze, and is suited with an lubrication bore.

All our connecting rods are equipped with high-strength Pro-Series 14.9 screws ! These have a tensile strength of 1490N/mm^2. Furthermore, the threads are rolled which also increases the flank thickness by 30%.

Allowance:

Piston pin bore: +-4/1000mm
Crank pin bore: +-4/1000mm
Verticality, paralellism und deformation:  +-5/1000mm
Weight: +-1 Gramm

Technical specifications:

Material: 4340 Stahl (40CrNiMoA)
Tenacity: >1250N/mm²

Length: 135mm
Piston pin bore: 22mm
Upper width: 23,60mm
Crank pin bore: 52mm
Lower width: 23,80mm
Weight incl. screws: 529 Gramm
(Original: 693 Gramm)

Employment:

- approved for up to 9000upm 

- approved for up to 200hp per con-rod