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Thread: $3200 for a performance M30 short block?

  1. #1
    Join Date
    Dec 2003
    Posts
    1,640

    Default $3200 for a performance M30 short block?

    Trying to do a bit of the math to see if this is a reasonable deal. End result is a 3.7l 10:1 balanced short block.

    Here's my quick math with menu prices off the top of my head - how does this shake out?

    Wiseco 10:1 pistons with Malhe rings ~ $1000 - $1100
    Rebuilt Rods including new bushes ~ $450
    Dip and pressure test the block ~$150
    Magnaflux and polish crank ~$150
    Overbore and hone block ~ $200 ?
    Misc bearings and bolts ~ $200
    Assembly and balance ~ $300
    New oil pump ~ $175
    Gaskets and seals ~ $50

    Sooo...that's about $2625 or thereabouts. Seems like that's what I could do the job for if I piecemeal the work out. Feels like I have about a $600 premium for delivering the engine to this guy and having him call me to say "It's done". He has a good reputation. I like the idea of having one guy deal with it all and having solid experience with these motors vs. the local machine shop.

    Thoughts anyone?

    Jeff
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  2. #2
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default is there any kind of coating thats supposed to

    be applied to the cylinders after honing?
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  3. #3
    Join Date
    Jan 2004
    Posts
    1,235

    Default Since you have a daily driver already...

    If it were me, I'd do the work myself just for fun.

    Sounds like a blast - drinking beer in the garage putting together a shiny new engine. You can take the time to make sure it's all torqued and polished just right, and know exactly what was done and why.

    Plus - I still think if you video it all you can sell the video CD to the rest of us knuckleheads for $50 a pop when our engines go south.
    Robin

    72 Chevy K10
    01 E39 M5

  4. #4
    Join Date
    Dec 2003
    Location
    Central NJ - USA
    Posts
    1,540

    Default

    hahah

    are u talking about metric mechanic?
    or a local guy?

    also what's the point of all these mods?
    are u trying to get more power? how much
    power can u expect from these?

    depending on the motor you may need to upgrade
    the injectors, the computer, and many other things
    like the diff and tranny...why not take that 3200 and
    put away for a turbo?

  5. #5
    Join Date
    Dec 2003
    Posts
    835

    Default His rings are likely shot.

    There is plenty o' smoke.
    erased due to slander

  6. #6
    Join Date
    Dec 2003
    Posts
    1,640

    Default Thought about that but I don't really have the tools or skills

    Assembley tolerances are in the .001 area... I don't think I can get it right. Too much cash and sweat equity at stake. Wanna fly up and help us stuff it in? I have about 400,000 Alaska Air miles in the bank..I'm sure that has to cover a ticket from NM.

    Jeff


    Quote Originally Posted by Robin-535im
    If it were me, I'd do the work myself just for fun.

    Sounds like a blast - drinking beer in the garage putting together a shiny new engine. You can take the time to make sure it's all torqued and polished just right, and know exactly what was done and why.

    Plus - I still think if you video it all you can sell the video CD to the rest of us knuckleheads for $50 a pop when our engines go south.
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  7. #7
    Join Date
    Jan 2004
    Posts
    1,235

    Default Geez - how to get this past SWMBO...

    Quote Originally Posted by Jeff N.
    Assembley tolerances are in the .001 area... I don't think I can get it right. Too much cash and sweat equity at stake. Wanna fly up and help us stuff it in? I have about 400,000 Alaska Air miles in the bank..I'm sure that has to cover a ticket from NM.

    Jeff
    You know, we've been thinking about cities to move to and Bellevue is actually high on the list.

    If I could spin it right... and line up a babysitter for a week... I'd have to find something for her to do to... do they have week-long whale watching cruizes this time of year?

    Tell you what. You and Martin and your families can drive down to Phoenix for the holidays with the parts in the trunk. I'll drive out there to meet up, and if we get stuck on something, we can call up Bill in Tucson for advice. Wives and kids can enjoy the city together, and in a week we'll have that new engine back in your car and you ready to zip home. Phoenix in the winter is an easy sell.
    Robin

    72 Chevy K10
    01 E39 M5

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