[Mike]

I've got a 70 challenger rt with a 440. I don't think I want to run a slap stick but I'm wondering which b&m shifters are recommended. Also, which hurst shifters are recommended as well. I've got an old rusted b&m star shifter right now and have been considering the quiksilver.

[Douglas Little (Dlittle)]

I am in the process of upgrading my Challengers 727 transmission. I plan a manual body shifter with the rebuild and have a question about the convertor. The engine is a 340, 10.5 compression, with ported X heads, headers, stock chrysler intake with TQ (may be changed later). The cam is 284, 485 lift. The rear is 8 3/4, 3.23. I have 15" 265x70 wheels and tires. I had planned to use a 3500 stall. Is this to tall? If so, what would be the best number? It must be street driven.

[Graham Shortreed (Transma]

You may want to look at a post I did a little earlier today. I like what you're thinking of doing, but the 3.23 gear isn't steep enough for that kind of stall if you plan on doing any street driving. Before you purchase your converter, take the car for a drive down a highway to say 50-60 miles per hour. Look at the tach, and see what the engine is reving to. If at that speed, the tach isn't past 3500 rpm ( the stall speed you're thinking of ), the converter is very inefficient, and generating a ton of heat. Make sure you put a GOOD trans cooler in line also, no matter what stall you pick.
Also, at what rpm does the cam start to make power. You should aim to have the converter stall about 500 RPM over where the cam starts to make power. A properly thought out high stall will really make your car come alive, but a poorly thought out high stall can make your car a real slug. For the most, if your car is going to see more street than strip use, try to aim for about a 25-2700 RPM stall converter.
At my place of work, we see many customers who want converters that are not suitable for their particular application. They've read or heard that some particular combination has performed miracles on some race car, but fail to realize that it may not be right for the street. A pro-stock Neon needs a couple of 1000 CFM Holley carbs on it for less than 7 seconds, but for a street driven vehicle that kind of a combination just wouldn't work.
Drop me a personal email at home.

[Dave_R (Roppa440)]

I agree. That converter would be way to high a stall for you.

[Graham Shortreed (Transma]

Doug. I checked with my high stall guy at work today, and with the present combination you are thinking of using, a 23-2500 RPM high stall would be the maximum you should be looking at.