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Rockcrawling idle speed and torque

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Langosta39, Feb 9, 2003.

  1. Langosta39

    Langosta39 1/2 ton status

    Nov 8, 2002
    Likes Received:
    Moscow, Idaho
    How low have you guys gotten your idle speed to go for rockcrawling? I run a '86 454 with stock Q-jet and I was thinking I could make up for lack of crawl ratio by just idling at 500 or 600 to slow the truck down. Also, does anyone have a guess has to how much torque is avaiable down that low? Even with 56:1 crawl a paltry 50 ft/lbs would probably be enough to stay moving, but I'm just curious.


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