turbo 350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gafiredog · 08-07-2008, 11:02 AM

i have been told that a turbo 350 can be had with a lock up converter, and will get better mileage than a nonlock up converter. no wiring harness to install either. is this true ?

Rodms · 08-07-2008, 11:24 AM

Quote:

Originally Posted by gafiredog

i have been told that a turbo 350 can be had with a lock up converter, and will get better mileage than a nonlock up converter. no wiring harness to install either. is this true ?

Call this number in Muscle shoals Alabama 256-383-6868 talk to Kenny,Its PTC transmissions and converters,he can tell you everything you need to know and probably build your converter for you if you already have one

gafiredog · 08-07-2008, 05:38 PM

Quote:

Originally Posted by Rodms

Call this number in Muscle shoals Alabama 256-383-6868 talk to Kenny,Its PTC transmissions and converters,he can tell you everything you need to know and probably build your converter for you if you already have one

thanks, will do

D13 · 08-08-2008, 06:22 AM

Yes, the 350 was available with lock up converter, it takes a power feed routed thru the brake pedal and if I remember the rest is in the trans. Be aware these are different than 'regular' 350's and the TCC (torque converter clutch) will not like high HP or monster torque. But for a basically stock DD driven over 45mph or so they will help your mileage ~5%

piecesparts · 08-08-2008, 07:03 AM

The GM 350C tranny was one with a lockup converter. They came on the Mid 80s trucks and did pretty fair jobs on their application. Most tranny shops did not want to touch them, because the output shft on them was smaller than a standard 350. The option was then to just install a 700 R4 and get lower first gear and the OD gear also.

08-07-2008, 11:02 AM	#1
gafiredog Registered User Join Date: May 2008 Location: metro Atlanta, Ga. Posts: 196	turbo 350 i have been told that a turbo 350 can be had with a lock up converter, and will get better mileage than a nonlock up converter. no wiring harness to install either. is this true ? __________________ Art 1975 c-10 stepper 1978 single cab dually 1987 crewcab dually 1986 crewcab single wheel 1948 anglia- (the dixie twister super gas)

08-08-2008, 06:22 AM	#4
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Re: turbo 350 Yes, the 350 was available with lock up converter, it takes a power feed routed thru the brake pedal and if I remember the rest is in the trans. Be aware these are different than 'regular' 350's and the TCC (torque converter clutch) will not like high HP or monster torque. But for a basically stock DD driven over 45mph or so they will help your mileage ~5% __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors

08-08-2008, 07:03 AM	#5
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: turbo 350 The GM 350C tranny was one with a lockup converter. They came on the Mid 80s trucks and did pretty fair jobs on their application. Most tranny shops did not want to touch them, because the output shft on them was smaller than a standard 350. The option was then to just install a 700 R4 and get lower first gear and the OD gear also.



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