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Thread: Roller cam anyone?

  1. #1
    Thank you from BT Master Mechanic
    Join Date
    Mar 2005
    Location
    MN
    Posts
    307

    Roller cam anyone?

    Has anyone ran a roller cam in a AMC motor on this site? Just wondering as I know they are avaible and but have heard their are block mods. for the lifter clearance on some motors, not sure about the AMC.

    If you have do you have cam specs and dyno figures?
    If this new part can't break....what old part will??

  2. #2
    The 360 build I'm doing is using a Chet Herbert Hydraulic Roller Cam. I just received the Crane Hydraulic Roller lifters for it the other day. I called Crane tech support and asked if there were any install issues that they are aware of. The tech indicated there is one, and that's to make sure that the lifter bore covers the lifter during it's entire cycle. He indicated that they've seen some AMC blocks a little light on casting material at the top, allowing the lifter to expose the oiling hole.

    The one mod I had to make to the motor was using the anti-walk plate at the front. From what I've read, rollers require some sort of plate or button to prevent cam walk.

    I'll let you guys know more as I progress through the build. Also, I'll post the cam specs when I get home.

    Steve

  3. #3
    BTW, the cam specs of the Herbert Hydraulic Roller are:

    Advertised duration @ .050 -

    285 Intake 285 Exhaust
    244 Intake 244 Exhaust

    Valve Lift .567 - .567

    Lobe Center 110

    This is what they recommended for the application that I plan on using the engine for (street/strip AMX)

    Steve

  4. #4

    Join Date
    Dec 2006
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    Anti Cam Walk

    get ahold of Nick Alfano > Alfano Racing > he is on the amc-list:

    go to :

    www.amxfiles.com

    sign up for the amc-list online & find Nicks address.

    he has an AMC V8 shaft roller rocker system for $799.00 on eBay

    has a 'nifty' anti-cam walk set up.

  5. #5
    Thank you from BT Junior wrench of the Forum
    Join Date
    Oct 2004
    Posts
    106
    I have been running solid roller for years .
    biggest thing is cam walk.
    I use a late model big block chevy cam plate .
    bolts to the block with 2 -1/4 inch bolts . I have to machine the cam gear to clear the plate .
    anybody with a lathe can do this it is not hard take the plate and the gear to a shop and they can do it .
    they should not charge more than 1 hr labor charge.as it should only take about 15 minutes.
    I have also used a sb ford and a 6cyl chevy plate but the one I use now seems to be the easyest to get for me.
    not rocket science.I give about .010 clearence on the plate

  6. #6
    Thank you from BT Jedi gear head
    Join Date
    Jun 2005
    Location
    CT
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    608
    Quote Originally Posted by radamx
    I use a late model big block chevy cam plate .

    Anybody got a Part number for this plate???????????
    I'm gonna need this for the "New, improved, ultimate, the end all... AMC oiler"


    Jeff
    1979 Jeep CJ-7 401 AMC, GMC 6-71 Blower 10% overdrive, Bugcatcher with electronic fuel injection and a little N2O for fun, all self built. (this supercharger stuff is easy)

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