My mind is set but my question is who can I talk to to figure out the best stall and gear for my setup? I was thinking of something like 4000 stall with a 3.xx something gear. Mods are:

-Engine-
Eagle 4340 383 stroker kit
SRP -5 cc pistons
Upgraded oil pump
Vented Optispark conversion (Dynaspark)
Cloyes Double Roller Timing chain
LT4 ported intake manifold
Canton oil pan
Meziere electric water Pump
AFR 190 Lloyd Elliot port and polished 217cc heads
HEAD FLOW NUMBERS
.2 138/107
.3 194/143
.4 242/178
.5 274/199
.6 285/211
.650 288/214

23X/23X/10X custom cam
Comp 977 dbl springs and Ti retainers
Crane energizer series non slef aligning Rocker arms
AFR guide plate
AFR one peice chrome moly pushrods
Racetronix 37lbs injectors
Racetronix fuel pump
Taylor spark plug wires
Hypertech 160 thermostat
BBK 58mm Throtle Body
K&N filter
Hooker long tube headers
Flowmaster exhaust
X pipe 3" pipes
MSD 6AL ignition
MSD blaster coil
4 bolt block
NGK TR6 Plugs
PCMforLess tune Alvin

 

Call and ask for Andre at Edge Racing Converters.

http://www.edgeracingconverters.com

 

your best bet if you want the stall set up to work the best with your car is to let it to the pros, I had ATI build mine I filled out a spec sheet on the car they wanted to know just about everything about it, CI, fuel injected/carbed nitrous/blower,trans type, cam specs, cars weight, gears, tire size, cars weight suspension set up,trans brake, you name it they wanted it they use there programs to set a converter up from all that, then you know what you got, they told me to run a 10 inch MRT converter in mine and they set the stall to around 3800 foot brake and I should be able to get 4500 out of it on the trans brake

 

Edge does the exact same stuff and for cheaper than ATI. Not getting into a pissing contest here I just talked to Andre about this several days ago and he was very informative. If their 4l60E converter has handle a 200 shot that made 550+rwhp and 650+rwtq LOCKED UP on the dyno on my car then I'll trust them to build my TH400 converter too, which I'm getting ready to switch to.

 

Im not eather, Im just stating that an off the shelf converter dont cut it, I just decided to go ATI on my car sence I know there work and I know what Im doing with my car the trans brake will be hell on parts. I had them build my trans and converter for in there and they were really good to me, they even sent me the oversized tail shaft a year after I bought it no charge when I decided to go with the big strange 17-4 stainless yoke on the back.

 

Loadre, what is the average cost for thier th350 converters?

lethal93ta, can you tell me more about this oversized tailshaft?

 

the oversized tail is for on the th400 its a lot bigger yoke, the wall thickness is over double the size of the stock 400 yoke, I had spohn build my drive shaft and went all out on it, he said this shaft should be good to around 1500 HP I dont think Im going to brake this thing

 

Not trying to hijack the thread but...

How hard is it to do a Tranny conversion like this?

If you're only planning to make 350-370whp... do you think it's necessary to go with the TH400 and lug around all that extra weight?

Daily driver car with a manual valve body.

 

i would keep 3.42 with about a 3500 stall...this will keep the converter tighter for the big end to still make good power and good mph...while the 3.42 wont break until you get into the 1.4 range...this will also allow you to run at least 135 trap speed...

and no a th350 or 400 is not needed until you get id say at least 600+ hp and weight over 3600 pounds....talk to frank so a search for(CPT) he is a stie sponser and will fix u up!!!

 

I wouldnt do a conversion till you hit around 500 HP a 4l60 can take that even some people out there now have 4l60s that can take more than that but I wanted a manual body and a trans brake in mine witch they dont make for a 4l60, when I decided to pull my car off the road and redo it I wanted to make it basicly bullet proof so I can drive it to the track and back home with out having to wonder if I need a tow truck to get home at the starting line every pass like I was before thats why I went with a th400 and a 9 inch moser.

 

The loss of an OD is huge if the car is gonna be street driven. I'd say that if you want an auto, get a properly built 4L60E unless you are making BIG hp and using sticky tires. If you need more than a properly built 4L60E, you need a TH400. Just IMHO. I cannot undertand a TH350 swap for 99.99% of combos.

Rich

 

A 4L60e is not an overdrive replacement for a turbo 350, theres a big difference.

What are you going to be doing with the car?

 

double post

 

yeah, th350's can def. be built to much stronger then any 4l60e Ive ever heard of. I know a guy on these boards with a third gen who runs low 9's on spray and lifting the wheels on every pass who's been running the same trans for years. and they are a lot lighter and take less power to turn then a th400.

 

I just chuckle when I see this. Its like some people think a TH350 weighs like a hundred pounds less than a TH400.
A TH400 weighs less than a 60E and I am willing to bet the TH400 soaks up about the same HP as a 60E does, TH400 has beefier internals but the 60E has another gear.
I am not knockin the TH350 at all but if your going to replace the 60E with a non overdrive tranny then go with a TH400. You will end up with a damn near bulletproof transmission. I agree with Rich on this one.