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Thread: 2.0 Motor Rebuild - What would you do?

  1. #1

    2.0 Motor Rebuild - What would you do?

    I am currently trying to come up with a game plan for the motor rebuild on my dad's car. Last spring I pulled the motor and disassembled it and am now trying to decide which way to go on a rebuild. 1966 2.0 Liter.

    I have no plans to sell the car and will drive it like its stolen when finished. It has been suggested to me that since that is the case, no sense in rebuilding it to stock and to build something that will put out a few more horsepower.

    It was suggested to me to look for some 2.7s heads, new cams, new 90mm jugs and pistons, along with the prerequisite case work of course, which would put me somewhere around 180 horsepower.

    I am no engine builder, but I do have the help of a Porsche mechanic and I plan to do as much of the work myself as I can.

    Anyway, I guess my question for you all is what would you do in a similar position? Does the 2.7s heads make sense, or would you go a different direction? What head, jug size, piston combo would you go with to add horsepower and make my car a little more sporty?

    I appreciate everybody's help and look forward to your thoughts.

    Josh

  2. #2
    I once had a 2.0 weber 1969 911T.
    We rebuilt it with S pistons 2.1 and E cams.
    It was awesome.
    1969 911T Coupe Blood Orange (Vivy)

  3. #3
    Senior Member
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    Build a 2.2 liter with '70 through '73 heads . If the heads are not S heads , have the ports machined to S specs . 2.2 liter cylinders will fit in a 2.0 liter engine case .

  4. #4
    Senior Member raspritz's Avatar
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    Quote Originally Posted by Perry911 View Post
    I once had a 2.0 weber 1969 911T.
    We rebuilt it with S pistons 2.1 and E cams.
    It was awesome.
    I did exactly the same for my 69T. Great pickup, and does 90 MPH on the interstate with ease. Fabulous!
    Rich Spritz

    1959 BMC Huffaker Mk1 Formula Junior racecar
    1967 Porsche 911 racecar
    1969 Porsche 911T
    1970 Winkelmann WDF2 Formula Ford racecar
    1973 Merlyn Mk24 Formula Ford racecar
    2007 Porsche 997C4 cab (totaled by an idiot running a stop sign)
    2014 Porsche 991 TurboS cab
    2019 Cayman GTS (wife's)

  5. #5
    Senior Member 62S-R-S's Avatar
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    Preserve the 2.0 ?

    3.0 motor
    3.2 - 3.4 pistons
    S cams
    Twin plug
    MFI / EFI
    915

  6. #6
    Quote Originally Posted by 62S-R-S View Post
    Preserve the 2.0 ?

    3.0 motor
    3.2 - 3.4 pistons
    S cams
    Twin plug
    MFI / EFI
    915
    I have considered that. It is a Solex motor. The trouble is, finding a suitable replacement in Alaska is a tall task.

  7. #7
    Senior Member tcsracing1's Avatar
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    build it to 2.3L

    twin plug.
    LOOKING FOR 1967S TRANSMISSION #103586
    Looking For 1969T Engine #6195922
    Looking For 1969T Transmission #7194313

    Looking for 1969T Transmission #7195495
    www.tcspeed.com

  8. #8
    Senior Member
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    Why not build it to a 2.6 twin plug 92 pistons and a 66mm crank.
    1. Chris-Early S Registry#205
    2. '70 911S Tangerine
    3. '68 911L Euro Ossi Blue

  9. #9
    Senior Member raspritz's Avatar
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    "A little more sporty" doesn't require twin-plugging, which is fairly hideously expensive and only really makes sense for a racecar.
    Rich Spritz

    1959 BMC Huffaker Mk1 Formula Junior racecar
    1967 Porsche 911 racecar
    1969 Porsche 911T
    1970 Winkelmann WDF2 Formula Ford racecar
    1973 Merlyn Mk24 Formula Ford racecar
    2007 Porsche 997C4 cab (totaled by an idiot running a stop sign)
    2014 Porsche 991 TurboS cab
    2019 Cayman GTS (wife's)

  10. #10
    So, the more horsepower the better, within reason for a mostly stock 66 911. The 2.7s heads, 90mm pistons, and stock crank was suggested to me with the expectation of somewhere around 180 horsepower. I was also told that twin plugging wasn't necessary.

    I just know there is a wealth of knowledge here, of which I have little, so I thought I'd see what the brain trust here thought. I do appreciate everyone's replies and suggestions, it has definitely given me some food for thought.

    Josh

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