What torque converter for a big block mud truck? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 06-13-2012, 09:10 AM   #1 (permalink)
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What torque converter for a big block mud truck?

Have a 1974 Chevy shortbed with a 454 with comp cams K11-242-3(http://www.summitracing.com/parts/CCA-K11-242-3/), air gap intake, Holley 770 truck advenger carb, TH 350 tranny, 203 t-case, 3.73 gears in the axles and 36" tires. This truck is used for mud drags and need a better launch. It is great at the end of the run but lacks at the begining. What converter do you recondmend?




After the last race.
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1985 Toyota 4Runner 22RE, 5.29 gears and 33-12.5-15 muds

Last edited by barneybasher1010; 06-13-2012 at 12:15 PM.
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Old 06-13-2012, 05:57 PM   #2 (permalink)
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looking at the cam specs i would say a 2000-2200 would suit you better
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Old 06-13-2012, 06:11 PM   #3 (permalink)
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I would spend my money on a set of gears first.
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Old 06-13-2012, 08:22 PM   #4 (permalink)
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I'd go with gears, then a 2500-2700 stall. It will be loose on the street, but it will be great for drag.
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Old 06-15-2012, 02:04 PM   #5 (permalink)
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That's not really that radical of a cam, even comp's website says you can use a stock stall speed. I'll say the next step up in stall speed would be ok, around 200-2200 any higher than that is pointless. I'll agree on the point you are losing out because of your gears; I'd change them first.
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Old 07-01-2012, 03:17 PM   #6 (permalink)
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we went ahead and got a 2000-2300 stall and it helped alot.
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1985 Toyota 4Runner 22RE, 5.29 gears and 33-12.5-15 muds

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