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Thread: BoooooooooST vs headgasket

  1. #1
    Member Nav's Avatar
    Join Date
    Jun 2012
    thunder bay

    BoooooooooST vs headgasket

    Attn serious engine guys:
    Just want to tap into some of your brains. I had a leaky headgasket on a boosted 6cyl BMW motor (M20). The motor is iron and has been oringed (copper figure 8 rings), and the head is aluminum. The gasket was a oem style/composite gasket that has a good reputation, and ARP head studs were used. It lasted 4years, so not too bad The issue I believe is that the headgasket rode a bit high due to the gasket not being able to completely compress the copper orings or develop a groove in the head gasket. My options for headgaskets are MLS, copper, or OEM/OEM style (which again was on there). File down orings, remove orings, leave orings? Sealant or no? Gasket? Thoughts?

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  2. #2
    HATER! MiniD1CK5's Avatar
    Join Date
    Mar 2012
    Thunder Bay

    Re: BoooooooooST vs headgasket

    You need to replace the orings and get a gasket that's designed for said o rings. Talk to Danny massaro because imo I would get rid of the o rings by either decking the block or replacing it.

    Randy Probst's take on the BRZ "it's like a BMW and a Lotus had a baby"

    "Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere." -Colin Chapman

    "He who shall be last, shall be sideways and smiling"

  3. #3
    Senior Member
    Join Date
    Jul 2015
    Thunder Bay

    Re: BoooooooooST vs headgasket

    receiver groove in the head?
    70 nova 4 speed lsx

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