Thread: 4.0 HO camshaft

  1. 4.0 HO camshaft

    Anyone out there have a 4.0 ho stock camshaft from a 91-95 jeep they could take some measurements from? Or have already measured. Purchased a mild reground upgrade RV1 from delta and gave them my old one for a core already. Just picked up my machined block and head and had a little more shaved off than I had originally planed. Looking ahead for possible shorter pushrods. Just doing some pre planing for ordering parts for assembly.
    Thanks, Greg.

  2. #2
    Join Date
    Nov 2010
    Location
    Alberta. Canada
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    Advertised duration int./exh.: 270.0/270.0 deg
    Duration @ 0.050" lift int./exh.: 197.0/197.0 deg
    Valve lift int./exh.: 0.424"/0.424"
    Lobe separation angle: 112 deg
    Intake centerline angle: 120 deg
    Valve overlap (advertised): 46 deg
    IVO: 21.5 deg ATDC (0.050" lift)
    IVC: 38.5 deg ABDC
    EVO: 22.5 deg BBDC
    EVC: 5.5 deg BTDC

  3. #3

    Re: 4.0 HO camshaft

    Thanks Jester32

  4. #4
    Join Date
    Nov 2010
    Location
    Alberta. Canada
    Posts
    1,546
    Hope it helps. Hope they got you into a dual pattern can to help the ho head breathe

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