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camshaft help

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by DaveK5, Mar 15, 2002.

  1. DaveK5

    DaveK5 Registered Member

    Nov 28, 2001
    Likes Received:
    Im doing a camshaft swap here soon. I would like to know what cam would be best. Im looking for good low end torque, fairly rough idle but nothing too radical. Any help is appreciated.
  2. Rocky91

    Rocky91 Registered Member

    Feb 14, 2001
    Likes Received:
    Rochester, NY
    To get specific we would need to know what size engine you have, year, and is it carb. or FI?

    As a general guideline a camshaft with lower duration numbers would increase torque, but also sacrifice more horsepower as the numbers go lower. So to increase torque in your engine you would need a camshaft that has lower duration numbers than the cam that is in your engine now.

    Here are a few suggestions IMO for the 2 most common engines in a K5.

    Post 1987 350 with TBI
    -Crane Cams CRN-104211 (Dur @ .5 - 194*/204*, Lift .407"/.429")
    -Edelbrock EDL-3702 (Dur @ .5 - 194*/214*, Lift .398"/.442")

    Pre 1987 350 with Carb.
    -Comp Cams CCA-12-231-2 (Dur 206*/214*, lift .432"/.453")
    -Crane Cams CRN1144112 (Dur 194*/204*, lift .401"/.423)

    Hope this helps. These are my opinions, these cams will give you the most torque but sacrifice some horsepower.

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