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Thread: 345 four barrel intake?

  1. #1
    Join Date
    Oct 2009
    Location
    Mont Belvieu Texas
    Posts
    53

    Default 345 four barrel intake?

    I have a 1978 Scout II with a recently rebuilt 345 and a 2 barrel Holley. It runs good but I feel like it the motor has more potential and I am thinking about install a 4 barrel intake. Any advice and if someone has a intake and carb for sale I am in the market.

  2. #2
    Join Date
    Mar 2009
    Location
    Las Vegas
    Posts
    208

    Default

    I'm in the process of rebuilding a 345 right now, and I am putting the 4 barrel edlebrock on it 650 CFM. Picked the intake up from Super Scout.
    '71 Basterd Scout 2
    with a 258 from a '73 CJ5
    Intake manifold with NHRA markings....go figure

    "Its (scout) four-wheel-drive capabilities are equal to anything this side of full tracks"

    David H. Petraeus for President 2012

  3. #3
    Join Date
    Oct 2009
    Location
    Mont Belvieu Texas
    Posts
    53

    Default

    Did you have a 2 barrel before? My motor is tight but it just doesn't seem to have the power I'm looking for. I was told that it just needed more fuel. My parents had a 77 when was growing up and even with the 2 barrel it seems like it had more power.

  4. #4
    Join Date
    Mar 2009
    Location
    Las Vegas
    Posts
    208

    Default

    When I picked this motor up it was seized so I'm not sure, but my friends scout has had the 2 barrel and it climbs just fine...it just did better once we put the 4 barrel on it. Have you checked the timing?
    '71 Basterd Scout 2
    with a 258 from a '73 CJ5
    Intake manifold with NHRA markings....go figure

    "Its (scout) four-wheel-drive capabilities are equal to anything this side of full tracks"

    David H. Petraeus for President 2012

  5. #5
    Join Date
    Oct 2009
    Location
    Mont Belvieu Texas
    Posts
    53

    Default

    Yes, the timing is good. I advanced it some and tried running a higher octain. It runs smooth. It seems to lack while pulling a trailer and during initial take off. I realize that it wasn't designed for racing. I just expect more.

  6. #6
    Join Date
    Mar 2009
    Location
    Las Vegas
    Posts
    208

    Default

    I've never had a problem with take off with any of these...they were built for torque and not speed...what gear ratio do you have?
    '71 Basterd Scout 2
    with a 258 from a '73 CJ5
    Intake manifold with NHRA markings....go figure

    "Its (scout) four-wheel-drive capabilities are equal to anything this side of full tracks"

    David H. Petraeus for President 2012

  7. #7
    Join Date
    Oct 2009
    Location
    Mont Belvieu Texas
    Posts
    53

    Default

    I'm not sure. Is there a quick way to figure this out?

  8. #8
    Join Date
    Mar 2009
    Location
    Las Vegas
    Posts
    208

    Default

    Good on oil for your tranny and rear diff?
    '71 Basterd Scout 2
    with a 258 from a '73 CJ5
    Intake manifold with NHRA markings....go figure

    "Its (scout) four-wheel-drive capabilities are equal to anything this side of full tracks"

    David H. Petraeus for President 2012

  9. #9
    Join Date
    Oct 2009
    Location
    Mont Belvieu Texas
    Posts
    53

    Default

    Yep, I just changed the transmission fluid and filter and replaced the bearings rear end bearings.

  10. #10
    Join Date
    Mar 2009
    Location
    Las Vegas
    Posts
    208

    Default

    Ok, so I'm assuming that you have the 727 Auto Tranny...Is the torque converter still good to go?
    '71 Basterd Scout 2
    with a 258 from a '73 CJ5
    Intake manifold with NHRA markings....go figure

    "Its (scout) four-wheel-drive capabilities are equal to anything this side of full tracks"

    David H. Petraeus for President 2012

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