For my '71 2 door with a TH350 auto and a 4.10 gear would you think a 3000 stall converter would be too much? It's going to be a weekend cruiser with some track duty too.

I ask cuz with a 28 inch tall tire I'll need to be going faster than 60 mph for the converter to lock up. I know heat is bad for trannies and I know an auxilary cooler will be in order but will that much slip be forgiving if I decide to go on a cruise slower than 60 mph?

I ran a 3500 stall with 3.08`s and a 26" tire for a long time before swapping to a better gear. It wasn`t too bad. I usually cruised in 2nd gear around town. You should be able to drive it normally under 60mph and then when you nail the gas, the stall lets you know it`s there.

Now, do you need a 3000 stall converter? What is your engine combo? You might not even need that much of a stall.

My 10" street converter flashes well over 3k but it only foot stalls about 1400 rpm and acts like a stock converter driving on the street. I liked it when my car was street driven but I need to have it restalled now that its race only. You will be fine with a street/strip converter.

Usually you can do allright with a street strip style converter. They will grab enough below the stall speed that you can manage to cruise just fine. I dont reccomend trying to drive it way under the rated stall speed. Highway gears and a heavy car will further aggrivate the heat issue, but your 4.10's will help out. Id say youll be allright......just dont get a cheapie. But, like the others have asked, yes it can work fine, but do you need it? Post your motor combo with as much info as you can possibly provide(cam, heads, carb, manifold......).

I've not built the engine yet but I'm looking at running a 402 bbc with a 750 Holley, an RPM intake, 290 heads and for the cam that one is still up in the air...I was considering the Comp XE274 which has a 1800-6000 rpm range so I figure a 3k stall should really come in when that cam is really churning out some power.

I originally wanted to do the XE284 but alot of people told me I'd have no vacuum for the power brakes plus I'd need a 3500 stall to really make the XE284 cam work.

Now I'm looking to see if any other cam companies make a cam for street/strip use for a 9.5-10:1 c.r.

My goal is to make my 71 2 door coupe a low-mid 12 second car at the track.

Originally posted by Junkyard Dawg:
For my '71 2 door with a TH350 auto and a 4.10 gear would you think a 3000 stall converter would be too much? It's going to be a weekend cruiser with some track duty too.

I ask cuz with a 28 inch tall tire I'll need to be going faster than 60 mph for the converter to lock up. I know heat is bad for trannies and I know an auxilary cooler will be in order but will that much slip be forgiving if I decide to go on a cruise slower than 60 mph? Converters don't know what the stall speed is, and they don't magically 'lock up' at some rpm. All non-lockup converters slip all the time, some more than others. If you get a good converter, you should have no problems running at any rpm. My converter flashes to 3500 rpm, yet runs very well at 2400 rpm on the road.