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Thread: What does it take to make a stock m119 engine into a 6.0?

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    Junior Member jguedel's Avatar
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    What does it take to make a stock m119 engine into a 6.0?

    Looking for instructions. is it just a lower end mod? where can I get parts? Thanks

  2. #2
    .036 Hoonigan™
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    Re: What does it take to make a stock m119 engine into a 6.0?

    Quote Originally Posted by jguedel View Post
    Looking for instructions. is it just a lower end mod? where can I get parts? Thanks
    Short answer: It takes a boatload of money and competent people to assemble everything properly.

    I don't have a comprehensive list with part numbers, but here's the big stuff:

    • Bore & etch Alusil cylinder block to 100mm
    • 100mm pistons & rings
    • Stroker crank from M117 5.6L (requires modifcations)
    • Grind/clearance block internal walls for crank clearance
    • Modify (machine) stock connecting rod caps for clearance
    • Cylinder head gaskets for 100mm bore
    • 6L camshafts (optional, may be difficult to obtain)
    • With 6L cams, the cylinder heads may require modification for increased lift
    • Port / polish / port-match cylinder heads & intake (optional)
    • 6L LH module for correct fuel mapping
    • Transmission rebuild/upgrade depending on current condition
    • A bunch of "while you're in there" stuff like new timing chain, rails, yadda x3



    RENNtech charged ±$30k for this back in the day. Pretty sure it could be done for <$20k nowadays. It's likely cheaper to buy a 6L engine (or complete car with 6L) and swap it in, even if it means sourcing the donor from overseas. The downside to that is you're buying a used motor in (probably) unknown condition, the upside is most of the hard work is already done and it should have the cams/porting/etc. The upside to building a fresh motor is that everything is brand new. Ping Jono at BlueRidge if you're considering a fresh build.

    AMG document attached in PDF format (German text) has a basic overview of the mods.

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