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Thread: 357 Magnum
          
   
   

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  1. #4
    camaro_fever68's Avatar
    camaro_fever68 is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2005
    Location
    Bayou
    Car Year, Make, Model: 68 Camaro 69 Chevelle 78 Chevy Luv
    Posts
    525

    The 421 will make more power and will run faster no doubt especially with the Vic Jr heads.

    I see a lot of potential for the current setup though with tuning and traction. All the power in the world will do no good if it can't be put to the ground. Taller tires will hook better due to the sidewalls. Work on the 60ft. You got enough MPH for 12.0's at least.

    If you want to build another engine, instead of going to the 420, go with a 412cid. That is a 3.8 stroke crank and 4.155 bore size. The heads you have will fit that combo well.
    Last edited by camaro_fever68; 12-10-2006 at 03:28 PM.
    RAY

    '69 Chevelle--385
    '68 Camaro--Twin Turbo
    '78 Luv--383

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