Stronger headbolts for M104 engine.  Recommended to use with turbo application

 

Tightening instructions:

Tighten bolts in stock numbering order.

First all bolts to 50Nm 

Loosen all bolts

Step one 50Nm

Step two 70Nm

Step three 90Nm 

Let the engine heat to working temperature ~80deg

Let the engine cool down.

Tighten to 125Nm

 

M104 Head bolts

€90.00Price