Which Stall?

[DirtyMax]

I need to pick a stall for a TH350 I'm going to have built. For the time being, it will be going behind a stock Olds 350. When I have the new motor built, I don't see exceeding 300HP since it's just a cruiser. It likely won't see track time since the clocks don't run that long.. :goof.

Any thoughts/recommendations for a stall that would be suitable for either application? The person who is going to build the trans is thinking 2500. I trust him but I also want to hear what some others have to say...

Thanks!

[Syclone0044]

Keep in mind the stall of any converter has EVERYTHING to do with the torque put out by the engine! So a "2500 stall" in one engine may be a totally different speed in another engine. Something to keep in mind since you said you were gonna put it behind a weak engine first and then a new motor later.

[DirtyMax]

Thanks!

The two I am looking at are 1800-2200 and a 2300-2500.

I don't know how long it will be until I build the new motor and I really don't want to buy a converter twice.

Since both should be adequate for the hp/tq of now and later, I think I might go with the 1800-2200 to keep the trans temps cooler while cruising since with the power levels I will be at and/or aiming for, that might be the only difference I really notice anyways, right?

[Prince Valiant]

Not just the torque of the engine, but the gears you run can effect the stall rpm that you see driving on the street too...tall gears can make a converter seem looser and short gears make it seem tighter...so two different T/C can actually act very similar in cars geared differently (but similar weight), or the same T/C can act very differently in cars geared differently, or with different weight.

I'd be inclined to buy the converter from whichever source you are going with and giving them the specs of the future engine/gears/chassis...then just accepting whatever that nets you behind the stock olds.

With mild gears and a moderate 300hp engine, I wouldn't think you'd need much more than 2200 rpm stall t/c torque converter. If you had 3.42 gears or higher, then the higher stall T/C would be fine too, and still more than acceptable on the street without running trans temps too high at all.

[DirtyMax]

It's got a total freeway rear end in it.

[Sleeper Sierra]

i've gat a 2500 stall and a 2800 stall i will take 75 for either one.

[70 cutlass 442]

Highway gears you will want a higher stall, you also need to consider what tire size you will be running as well as what the actual tq output will be of the motor... I sent you a PM that i hope helps ya!