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I have a big block producing over 500+ hp and 500+ torque. It revs up to about 5800 or 6000. This is like an everyday driver!!
The guy who built my moter told me to use a 2500 stall converter. I had trouble with the one I received and the transmission place ended up putting a 2800 to 3200 stall which seemed okay to me. Well this thing is actually stalling out around 3200 and 3500. I mean it revs up their quick any time I start to give the motor some gas. IT's a boss hog stall converter. I plan on going back to the 2500 stall converter and no more. Something like 2200 to 2500 stall.
What rpm stall converters are you Big Block guys using???

Thanks for any input.
Chris
 

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Yo Pro...

I used a Hughes 2400 stall when I had my BB Turbo 400. Now that I have a BB R700, I also use a 2400 stall.

MY cam starts to make real power about 2500 RPM and that is why I use the 2400 stall. In my opinion, 2800-3000 is too high a stall speed for a daily driver.

My cruise RPM is @ 2600 RPM. You wouldn't normally get a stall convertor with a stall speed HIGHER than you normal cruisng RPM because of inherent problems with possible slippage and the corresponding heat that goes along with that.

The whole idea of course is to be able to launch the car from a standstill into the power band of your motor. Now if you had a nasty 302 and decided to use a auto, I could see where a higher stall speed might be desirable. But for a Daily Driver BB, you can't beat 2400-2500 stall speed.



[This message has been edited by sr71bb (edited 06-21-2000).]
 

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One less complication when you have a 4 speed
. My 68 Chevelle has a hughes 2500 stall converter. With the solid roller cam I am running(238/[email protected] 640/647 lift 108LSA) the car needs a bit more converter and some lower gears(3.73 or 4.10). Cool thing is on the street the car launches with no spin. Haven't had it to the track yet(waiting until required changes are done), but I would expect it to bog off the line with the present setup. I agree with sr71bb's opinion though for the daily driver on the street 2500 works well. My Chevelle of course is not a daily driver (unless its nice like this week
) Good Luck

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Jeff
69 SSRS 396(roller 427 :D )
My Chevs
 

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I have a 427 with 500+hp and use a 3,000 stall that works great.You wouldn't know I had it if I didn't tell you.Gear ratio has alot to do with it as well I run 4.11 and cruise around town at 3,000+ rpm.As for it being a daily driver I can't afford 50 bucks a day on gas.
 

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If you know your numbers (Cam, cr., rearend, etc) call the converter manufactures and see what they suggest. ATI and Coan come highly recomended over at the TC site.

You may pay more for a custom jobber, but your times could be cut and you would have better street manners than a 'generic' converter.

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Have you checked your SS's lately
 

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i'm running a GER, 3500 stall converter with my 396. i running a solid lift cam right now(610", .310, [email protected]). but i'm switching the cam to a comp cam 294 x-treme cam, and they recommend me to run a 3500 stall with my powerglide.
bruce
 
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