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Old 11-24-2011, 01:41 AM
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help w trans recomendation

My vehicle is a driver not a dragster
3000lb
3.55 gears
355 w 177 supercharger(Summit Block)
mild cam
vortec heads
Probally around 490lb torque "" Camquest software"

I am building this truck to drive on the highway and take on trips and would like to use a pre 93 700R4 with a manual valve body , performance rebuild kit, would this be a good choice????

I have friday off and I am going to the junk yard to pick up a few things(trans)

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Last edited by bigalow; 11-24-2011 at 01:50 AM.
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Old 11-24-2011, 07:06 AM
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My opinion would be yes. I would think an overdrive would be a good choice and a 200 4 r may be a little light for the job.
You might want to do a little calculating on final ratio and such as I think you 700 has a final ratio of .69 to one. With 27 inch tires and a 3.55 rear your engine will be turning 2500 rpm at about 80 miles an hour.with a 24.5 inch rear tire your speed at 2500 would be 75 miles an hour still a tad high for engine rpm( IMO) plus a 24.5 inch tire may be a little small for your ride.
If your OK with those numbers then go for it. Maybe the turbo 400 would be a better choice after all, as with a 1.00 to one final from the turbo 400, 27 inch tires and a 3.55 the engine rpm would be 2500 at 55 miles an hour.
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Old 11-26-2011, 01:23 PM
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id use a 700r find a 87 and newer though
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Old 11-26-2011, 09:32 PM
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A 3 speed auto driveability is a bit dated , however they were fun to stall and power brake. A TH350 with 1800 stall from the tow package, was fun like a toy that needed to be wound up and let go with the brake. Stock 4bbl v8 and 3.xx series rear, with front disc rear drum, hold gas and brake for 3-5 seconds and release. Hold down the brake too long and the carb dives, then you loose the build up for a launch. Master this and you could very well burnout anything of the time. New EFI and electronic transmissions drive superior that is a good direction for a serious build. Wide open 700r4 feeling with a overdrive, the downshift to second , good stuff.

Mine is old school th350 with a lockup. At lockup th350c 3.73 28" tires 65mph cruise control on it runs a busy 2850rpm.

A freinds build has a sbc 4.10 26" tires 700r4 2400 stall runs 65mph at 2350rpm.

This is how my stall works, my performer build sbc th350 hi stall setup lost the ablity to casualy burn out with only a foot to the floor. After the 3000rpm stall , the wind up and let it go, is a must for launching. Going to the flash and accelerating without holding it back first sucks. Properly holding the brake and throttle, it winds up and takes off like a wildman. Traction always becomes a issue , its that powerful. Fun stuff.

Last edited by spinn; 11-26-2011 at 09:39 PM.
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