What stall speed to use?

[luvbowties]

I'm having a new 700R4 built, as present one has 'high-mileage leaks & looseness'. Going with a mild shift kit, one my reputable, local guy says will shift soft enough in normal driving and harder with increasing throttle. Using ~27-inch tires and a 3.73 differential--and this has been a quite satisfactory combo for 2-3 years.
Tranny man asked me what stall speed convertor--lockup type, of course--I wanted to go with. There will be no 1/4-mile runs and mostly around-town driving; maybe 1 @ 150-mile trip a year. Engine is stock 96-97(?) 5.7 vortec with 4bbl intake and carb and headers. And I DO use the lockup, planning to do the same w/new tranny as present one:locks up when it shifts into overdrive, yet I have a lockout switch run under dash to completely bypass the lock-up when I desire.
Knowing practically zilch(zero)about stall speed convertors, and never driven one for any length of time, I need to ask which one to go with. He says he'd rather me specify this parameter, altho' he's calling all the other shots AFTER learning how I drive and what I want to do with my truck.
Thanks,
Sam

[Bishops Trucks]

In my opinion, a 2500 would work just fine since it's a cruiser.

[wjjeeper]

Sounds like you are in the exact boat as me regarding driving style, up level etc.
In my 700r4 I put the lockup switch and have a 2500 rpm stall.

I'm very happy with the set up.

[davbowen]

since engine is stock and assume the tranny is stock. use a stock converter what ever that may be.

[racecougar]

A 2400-2800 rpm stall should be right on the money for a stock 5.7L Vortec.

[Rich 5150 69]

If it were me, I`d run the BM hole shot its only 2100 first stall above stock, it will generate less heat, out side of OD, lower rpm drivibity will be better on the fuel.

[neal 66]

whats wrong with a stock one? engine is stock,3 73s are going to get you movin quite easy.i have 700r4 3 73s 305 and 285 70s and can smolder tires with ease if I choose.my truck is soon to have 5.7 vortec with cam and will still have stock converter.by 305 I mean chev. not gmc v6

[boucher racing]

I am getting ready to do a T5 to 700r4 swap in my 66.

After way to much brain racking, I decided to go with a FTI street brawler 2400 lock up torque converter. I heard/read many good things about FTI and the price was on budget.

My set up is:
-3.54 rear gear
- 29" tires
- turbocharged inline 250

What are you running for a trans cooler?

Boucher'

[jayoldschool]

There will be no 1/4-mile runs and mostly around-town driving; maybe 1 @ 150-mile trip a year. Engine is stock 96-97(?) 5.7 vortec with 4bbl intake and carb and headers. And I DO use the lockup, planning to do the same w/new tranny as present one:locks up when it shifts into overdrive, yet I have a lockout switch run under dash to completely bypass the lock-up when I desire.

Lowest stall, stock converter you can find. I would suggest one from a Caprice/Roadmaster/Fleetwood. 1800ish.

[Sharps40]

Originally Posted by jayoldschool

lowest stall, stock converter you can find. I would suggest one from a caprice/roadmaster/fleetwood. 1800ish.

+1

[HumphreyMurdoch]

I was always told to keep it below your cruising RPM on the highway. maintaining RPM below stall speed causes it to constantly slip and will burn your transmission up.

[bama63]

Originally Posted by sharps40

+1

+2

[racecougar]

Originally Posted by HumphreyMurdoch

I was always told to keep it below your cruising RPM on the highway. maintaining RPM below stall speed causes it to constantly slip and will burn your transmission up.

That's a good idea if you're using a non-lockup TC. With a lockup TC, that becomes a non-issue.