700R4 Torque Converter choice

[bbrriiaann1973]

I have a 70 c10 it has a 383 with trick flow heads and a 700R4 with a stock torque converter. The truck is very sluggish off the line and at low Rpms. If I changed the converter to a higher stall would that help the engine be less sluggish at low rpms?

Other wise truck runs fine, in the beginning I went with a stock torque converter because I didn't want the engine to run hot. As a higher stall converter will run hotter, now I am willing to take that risk.

So to recap 383/700R4 and 3.73 gear posi.

How much of a stall would work best?

Any ideas would be helpful

Thank you

[bbrriiaann1973]

I forgot to put in my cam specs

Competition Cams
Cca-12-242-2

Lift: 224 int./230 exh.
Duration: 268 int./280 exh.

Crane cams rolling rockers
Crn-11744-16
1.5 ratio

My guess is 3100 stall?

[Rickysnickers]

According to the Comp Cams website, it's "best with a 2000+ stall" convertor.

[harpo231]

I also have 383/700R4 and 3.73 gear

My converter is rated 16-22

If ya go higher get a good cooler !!

[LEEVON]

I have always had good luck with the factory S10 converters in 700r4's. The advertised stall speed is 2200 rpm. Some of the factory 700R4 converters were way down around 1300.

[71cheyennesuperlongb]

My truck was 350,now 307,700r 3.08 rear and with the 3 something first gear is anything but sluggish off the line! It burns the tires off in first gear. If you change the converter wouldnt you loose forth gear lock up?

[bbrriiaann1973]

It's a non lock up 700R4 converter in it now