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Thread: Cam selection

  1. #1
    Heatseeker
    OK guys. I'm approching the witching hour here on my build up. I need to decide what cam to run so I can have the machine shop prep my newly aquired heads(stock 990 rect. ports). I'd like to hear what cams everyone is running. I did some DTD sheets with some of the name brand sticks and came up with a few possibilities, but I'm interested in what works for you.
    If possible, give me all the pertenient info(lift, duration@.050", lobe seperation) so I can run them on DTD.
    Thanks.

  2. #2
    Heatseeker
    I guess I should've put up the particulars. That's what I get for sneaking onto the boss's computer when I should be working .
    I'll try again:
    I've got a 468, new bottom end, heads in the shop, 8-71 BDS w/850 Holleys on pump gas(for now)going in a jet. No valve gear yet.
    What do you think .
    [ September 19, 2002, 10:57 AM: Message edited by: Heatseeker ]

  3. #3
    Dave F
    If you use a Crane hydraulic flat you have a couple of choices:
    228/236 114 .530/.531 This cam is used in the Merc 525 SC
    With an 8-71 I assume you're gonna put a little more boost in than Merc so you may be able to step up to the 236/246 114 .553/.571
    If you wanna go roller:
    226/234 112 .587/.610 will take you to 6000r's
    234/242 112 .610/.632 will take you past 6000r's
    With a Gen 6 motor (roller)
    230/236 112 .598/.610
    236/244 112 .610/.632
    All but the first cam will require aftermarket springs.
    That may be a deciding factor for those firt 2.
    DAVE

  4. #4
    Dave F
    If you use a Crane hydraulic flat you have a couple of choices:
    228/236 114 .530/.531 This cam is used in the Merc 525 SC
    With an 8-71 I assume you're gonna put a little more boost in than Merc so you may be able to step up to the 236/246 114 .553/.571
    If you wanna go roller:
    226/234 112 .587/.610 will take you to 6000r's
    234/242 112 .610/.632 will take you past 6000r's
    With a Gen 6 motor (roller)
    230/236 112 .598/.610
    236/244 112 .610/.632
    All but the first cam will require aftermarket springs.
    That may be a deciding factor for those firt 2.
    DAVE

  5. #5
    Heatseeker
    Dave, Thanks for the reply. I'll run the numbers on DTD tonite.

  6. #6
    Blown 472
    Comp flat, 570, 236 on a 110.

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