head gasket

  1. Banshee.E82

    Technical Need Help Figuring out parts to replace in engine rebuild

    Hello, I'm Nick and I am currently trying to figure out everything that I will be needing to rebuild my engine(N54 2008 135i 8 Bolt Manual @174,XXX Miles) to OEM Spec. I am Planning to get Hydra HP650 Turbos and aim for 550hp with headroom. To my understanding, the stock n54 motor with no...
  2. AK135i

    External head gasket leak?

    Not exactly having good luck here, finally figured out my coolant leak. How often does this happen to n54's? I know blowing head gaskets arent too common but an external leak at the head has me surprised. The car was compression checked and cyl 1 was 18% down and the rest were fine, but no...