Looking for a 700R4

[jd21476]

I am looking for a good place to buy a 700R4 Where have you bought your tranny from and are the reputable?

I found a place in San Diego called CDO trans and he said he can build me one with a torque conveter and a lock up in 4th with TV cable for $1800. Good deal?

[gchemist]

Ouch, for that price, I hope it's heavly modified. A good 700R4 starts at $800 or so and up around here. You can ditch 4th lock up and run a stall converter. A stock engine will do well with a 1800 stall converter. My 700R4 upgraded with good and hard parts is a little over $2K. I can beat on it all day and not sweat. Running an external cooler helps too.

[68Timber]

bowtieoverdrives.com seem to have good options and prices.

[jd21476]

What exactly does a stall converter do? I thought I had to have a lock up?

I'm a little worried cause everyone seems to say that the 700R4 is a crappy tranny unless you get it upgraded.

My truck has a 350 with a cam and some extra performance parts but I don't know what it puts down for power but it is kind of beefy.

[BLP]

2X bowtieoverdrives. I have the stage 3 kit behind my 496 bbc with no issues. Great customer service.

[jd21476]

So which trans do I buy? They offer 4 levels. Like I said, my 350 has mild build with a cam but I want something reliable without having to spend more money than I need to. I am mainly looking to tow my jet skis and I run it on the highway all the time.

[BLP]

If you call them they will ask you about your ride (tire size, axle ratio engine specs etc.) and tell you what they think you need. I have the stage 3 kit with the 495. 500 hp/600tq

[midnight rambler]

im getting one installed now at san marcos transmission the guy came recommend from a big group of friends. had them install it and cut the drive shaft. give the owner david a call.760 591-3644 tell him you want the same setup that i got. if you have time im in san marcos you can go for a ride in it.

[gchemist]

Is labor included with the $1800 for install? If so, I think it's fair because intalling on a 4X4 is harder.

Stall is when the converter engages engine and transmission together. It's the same thing a lock-up does. In a stall, it's a mechanical engagment. It happens regardless of speed because it's based on engine RPM and load. My converter locks at ~45 RPM either in 3rd or OD. It locks at higher RPM if I put more throttle on it. Stall is good for perfomance motors. Stall is set to "lock" when an engine begins or is in its torque power curve. In most cams, power starts a ~1200-1500 RPMs and up. Racing cams curves are in a much higher RPM range.

[kalbert]

Originally Posted by gchemist

Is labor included with the $1800 for install? If so, I think it's fair because intalling on a 4X4 is harder.

Stall is when the converter engages engine and transmission together. It's the same thing a lock-up does. In a stall, it's a mechanical engagment. It happens regardless of speed because it's based on engine RPM and load. My converter locks at ~45 RPM either in 3rd or OD. It locks at higher RPM if I put more throttle on it. Stall is good for perfomance motors. Stall is set to "lock" when an engine begins or is in its torque power curve. In most cams, power starts a ~1200-1500 RPMs and up. Racing cams curves are in a much higher RPM range.

Stall speed and lockup are not at all the same thing.

Stall speed is the maximum rpm the drive turbine can spin before the driven turbine starts to spin which is the point where maximum torque multiplication occurs. It varries widely depending on the how much engine power there is and when it comes. The same converter behind two different motors will achieve different stall speeds. The RPM rating is very general. Generally speaking an appropriately modified engine will be able to make an 1800 RPM converter 'stall' at around 1800 RPM.

Lockup occurs when the coupling clutch inside a lockup converter is applied creating a direct link between the input turbine and the output. This allows the converter to achieve 100% efficiency when fully applied, which reduces heat and stress in low RPM high speed situations like cruising on the highway and also provides meager fuel efficiency gains. At low RPM tourque multiplied by the converter goes un applied which generates tremendous heat. By locking the converter no multiplication occurs, so no excess heat is generated. A 700R4 that is regularly used in overdrive should always have a lockup converter that working correctly.

[jd21476]

Originally Posted by gchemist

Is labor included with the $1800 for install? If so, I think it's fair because intalling on a 4X4 is harder.

Stall is when the converter engages engine and transmission together. It's the same thing a lock-up does. In a stall, it's a mechanical engagment. It happens regardless of speed because it's based on engine RPM and load. My converter locks at ~45 RPM either in 3rd or OD. It locks at higher RPM if I put more throttle on it. Stall is good for perfomance motors. Stall is set to "lock" when an engine begins or is in its torque power curve. In most cams, power starts a ~1200-1500 RPMs and up. Racing cams curves are in a much higher RPM range.

$1800 was just the tranny. Install was extra.

[Stickman]

X3 on the bowtieoverdrives, they have good products and great customer service.
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