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Time For A New Cam

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

  1. RATTYFLATTY

    RATTYFLATTY I think you need a little more throttle

    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
     
    RATTYFLATTY, Jul 26, 2020
    #1
  2. Jw60

    Jw60 That guy 2024 Sponsor 2023 Sponsor 2022 Sponsor

    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.
     
    Jw60, Jul 26, 2020
    #2
  3. Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Good cam. Expands rpm range without killing bottom end. Smooth. Watch the push rod length on reassembly.
     
    Rich M., Jul 26, 2020
    #3
  4. RATTYFLATTY

    RATTYFLATTY I think you need a little more throttle

    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?
     
    RATTYFLATTY, Jul 27, 2020
    #4
  5. Warloch

    Warloch Did you say Flattie??? Staff Member

    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.
     
    Warloch, Jul 27, 2020
    #5
  6. sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    That’s what the boys runs. Works good with his stock 2bbl.
     
    sterlclan, Jul 27, 2020
    #6