Right Stall converter??

[byates2]

I know you're supposed to base the stall convert off the CAM. Thats where my problem comes into play. I bought the engine used so i have no cam card or cam sticker, and i have no idea what cam it could be

I do know it is a Comp Cams. And there is a sticker on one valve cover with 10 part numbers and an executive order number(D-279-6)

It supposedly is a 383 stroker motor.
Ive narrowed it down to about 5 different cams it could possibly be

12-207-2 duration: 255/261 lift: .421/.451 050: 203/212

12-208-2 duration: 265/269 lift: .442/.465 050: 211/221

12-206-2 duration: 260/260 lift: .440/.440 050 212/212

12-210-2 duration: 268/268 lift: .454/.454 050: 218/218

Now this one has a higher lift, so if it was a stroker motor maybe this one?:
12-106-3 duration: 342/342 lift: .447/.447 050: 222/222

Any ideas??
How can find out what cam i have?
Are those numbers different enough to make much of difference in choosing stall converters

[Fldawg]

i would probably not go over 3000 on the stall, my cam looks to be bigger than that and that's all i'm running and it works fine

[kwmech]

If it is a mildly built 383, my money is on the 210-2 cam (268) With 268 NOT being the lift, but the duration at .050.

Run a heavy duty stock convertor unless your going to romp on it all the time. What's the rear gear ratio?, tire size?

[GASoline71]

I've got a very snotty cam in my SBC and the stall I have is 2,800.

Gary

[hugger6933]

I would go on the side of caution and say 2400 to 2600. If you have a low rear gear lean more toward the 2600 side. If you do go with much over a stock stall and you drive in traffic a cooler at least and a cooler with a fan would be a good idea to keep the trans temp down. Also a deeper pan so you can have more fluid[more fluid=more cooling] and a trans temp gauge are not badideas either. Jim

[SS Tim]

Might just want to stop guessing. It is an unknown used engine. Pull the pan to look at the bottom end, oil pump and verify it is a stroker. Pull the timing gear to verify the cam numbers. Sticker could have come from anywhere.

[So.Cal.Super]

going through this now with my converter, mine is being built or if you call TCI/B&M etc. the more info you can give them the better.

cam duration and lift @.50
truck weight
rear gear
tire size
engine hp @ flywheel
what are you doing with it, street/strip, towing. track etc.
A long time ago I R&R'd transmissions for a little while and asked the builders a ton of questions. The more info you can give them the better. I have seen plenty of overstalled converters kill the performance of a good engine.
I personally don't like to guess. I would verify what I could.

[prostreetC-10]

What are you using the rig for? Make sure you know what you are getting into if you are looking at a 3,000 stall on the street.

[GASoline71]

Yup... If you're towing and hauling... that 3,000 stall will make a lot of extra heat in the tranny.

Gary

[hayhauler71]

I had a b&m stall that was crap it never impressed me than decided to have one built for my application and what a difference it made. MPC Midwest performance converter

[atomic67]

I run a 3000 stall behind my 383 with GM hot cam and 3.73 rearend. I have a Bowtie 700r4
And the combo works great. It is a Circle D converter.
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[Fldawg]

I stated before i'm running a 2800 small boss hogg converter with cooler and it works great with my 383 3:73 gear and a split duration lunati cam
specs are lift is 465/488 duration 290/300

[So.Cal.Super]

Originally Posted by hayhauler71

I had a b&m stall that was crap it never impressed me than decided to have one built for my application and what a difference it made. MPC Midwest performance converter

Mine is being built also. I just posted those two because they are easy to call and talk to. I can't wait to see what it drives like

[byates2]

I dont want to race it or anything like that. I just basically want it to be a cruiser, i dont plan on towing much with it but i'd like to have the capability if need be.

I have pretty good size tires on 15x8 rims.
I believe the gear ratio is 4.11 but i eventually want to swap out the rear end with a ford and 3.73 gears unless the 4.11 are better for cruising and overdrive. I want to be able to have pretty decent take off capability but then again i'm not gonna be racing it.

[Fldawg]

With 4:11 or 3:73 you'll have plenty of take off with that 383, they are torque monsters

[turp mcspray]

Any of the cams listed, will be mild in a 383. Your stock converter will work just fine.

[byates2]

What would be considered "stock" I had the old 2 speed power glide but now I'm converting it to a 700r4
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[RRR18]

Call ALL of the converter companys. They know better than anyone. Have ALL of your info and they will tell you what to run.