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#1 |
Registered User
Join Date: Jun 2015
Location: Phoenix Az
Posts: 211
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700R4 Torque Converter choice
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
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Brian Ritter |
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#2 |
Registered User
Join Date: Jun 2015
Location: Phoenix Az
Posts: 211
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Re: 700R4 Torque Converter choice
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?
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Brian Ritter |
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#3 |
Senior Member
![]() ![]() Join Date: Oct 2014
Location: Eagle, ID
Posts: 3,010
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Re: 700R4 Torque Converter choice
According to the Comp Cams website, it's "best with a 2000+ stall" convertor.
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#4 |
Registered User
![]() Join Date: Jul 2006
Location: Ozark, MO
Posts: 4,887
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Re: 700R4 Torque Converter choice
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.
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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#5 |
Registered User
Join Date: Nov 2014
Location: Lincoln City DE
Posts: 1,292
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Re: 700R4 Torque Converter choice
I also have 383/700R4 and 3.73 gear
My converter is rated 16-22 ![]() If ya go higher get a good cooler !!
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Stan 67 swb BLU MULE posted via flip-fone |
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#6 |
Registered User
Join Date: Aug 2015
Location: Alcoa;Tn
Posts: 208
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Re: 700R4 Torque Converter choice
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?
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'71 Cheyenne Super LWB - Second Owner in 39 Years! '70 CST/10 SWB - Soon to be Daughter's truck when finished |
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#7 |
Registered User
Join Date: Jun 2015
Location: Phoenix Az
Posts: 211
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Re: 700R4 Torque Converter choice
It's a non lock up 700R4 converter in it now
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Brian Ritter |
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