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Time For A New Cam

Discussion in 'Early CJ5 and CJ6 Tech' started by RATTYFLATTY, Jul 26, 2020.

  1. Jul 26, 2020
    RATTYFLATTY

    RATTYFLATTY I think you need a little more throttle

    Central MN
    Joined:
    Oct 23, 2007
    Messages:
    515
    I was getting some exhaust noise coming back threw the carb and the power seemed to be a bit down. So after pulling the valve covers I found a exhaust valve that wasn't moving much. Then down far enough to pull the cam and there you have it, a lobe with no lobe and a dished lifter. I'm looking at this cam from Comp Cams. Anyone have anything good or bad to say about this one? Or a better option?

    My motor is basically stock with a Offy 360 intake, Motorcraft 2150, GM HEI with stock exhaust manifolds.

    Engine Family:Buick 198-225 c.i. Odd Fire 6 Cylinder (1962-1968)
    RPM Operating Range:1,000-4,800
    Grind Number:252H
    Cam Type:Hydraulic Flat Tappet
    Lifter Style:Hydraulic Flat Tappet
    Advertised Intake Duration:252
    Advertised Exhaust Duration:252
    Intake Duration at .050 Inch Lift:206
    Exhaust Duration at .050 Inch Lift:206
    Intake Valve Lift:0.438
    Exhaust Valve Lift:0.438
    Lobe Separation:110

    5.jpg
     
  2. Jul 26, 2020
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,717
    Apples to oranges I know but My 4.3 has about the same cam and it moves plenty well. 252 seems to be the bees knees around here in the 225. 264 if you want a bit more over the road but I don't think It is better offroad.
     
  3. Jul 26, 2020
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,169
    Good cam. Expands rpm range without killing bottom end. Smooth. Watch the push rod length on reassembly.
     
  4. Jul 27, 2020
    RATTYFLATTY

    RATTYFLATTY I think you need a little more throttle

    Central MN
    Joined:
    Oct 23, 2007
    Messages:
    515
    Are you referring to push rod wear or to long with the new cam? Also thoughts on new springs, do I need to worry about coil bind?
     
  5. Jul 27, 2020
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,466
    That's the one I recommend most people run in the 225s. I have it in two of my motors now. I have gone up to the 260 for a bit more top end, but its' really not needed for these motors unless your going to run them at high revs for longer periods.

    I know quite a few others are running it as well.
     
  6. Jul 27, 2020
    sterlclan

    sterlclan Member 2022 Sponsor

    exploring the...
    Joined:
    Feb 21, 2009
    Messages:
    3,869
    That’s what the boys runs. Works good with his stock 2bbl.
     
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