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Thread: 1:6 Roller Rockers on a 350
          
   
   

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  1. #1
    deepnhock's Avatar
    deepnhock is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: '37 Stude Coupe Express
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    Question 1:6 Roller Rockers on a 350

     



    Question for the group....

    I have a mild 350/350 in my street rod.
    '77/'79 350 4 bolt, 1.94 62cc heads.
    Running a 3.55 rear.
    750cfm AFB.
    Block hugger headers with dual full length exhausts.
    I like the off idle to 6 grand driveability..
    Runs fairly strong, but nothing spectacular.
    Has a nice idle, nothing lumpy or anything.
    Good vacuum at idle.
    Don't know the cam specs.
    Would a change to 1:6 rockers bring anything to this combo?
    A 'lot' has to come off for a cam change.
    Anyone have experience doing this?
    Just curious.
    Thanks ahead of time.
    Jeff
    http://community.webshots.com/user/deepnhock

  2. #2
    viking's Avatar
    viking is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 23 T, 53 FLH , 66 C-10 454, 03 CVPI
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    Yeah deep it will help but nothing to WOW ya, since you don't know the cam spec's there's no way to even guess at coil bind, just check the first couple that you swap.
    Objects in the mirror are losing

  3. #3
    budlight is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 79 Custom Road racing Vette
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    Coil bind is the big problem.

    If you don't know the cam lift you have to measure it.

    With a dial indicator set on the retainer - Zero it out at either max lift or when the rocker is loose and see how far the cam is moving it. Take that number and divide by 1.5 Then multiply by 1.6 and see what your lift will be.

    With a dial indicator set on the retainer on a valve at it's fully open position crank the rocker nut down till you reach the minimum space between your spring coils. Record this amount.

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