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Old Feb 19, 2012 | 12:24 PM
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Default Tq Converter

Hi All
I have a 1980. my cam is 1500-4000 278/288 duration .420/443 lift and bored .30over. stock heads and intake, stock tranny. my tq converter shaft is scored and the seal will not seal. what would be the best converter for this set up?? and what is the stock stall RPM converter??
Thanks
Larry
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Old Feb 19, 2012 | 01:02 PM
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Consult the cam manufacturer and give them all of your specs. There are many variables and would be an expensive and time consuming mistake to make. Most cam manufacturers are pretty accurate with their recommendations.
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Old Feb 19, 2012 | 01:38 PM
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http://www.summitracing.com/parts/SUM-G2699/
Here is a good one or a start to what you need and you don't need much.
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Old Feb 20, 2012 | 02:00 PM
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Hope your not going to just plug in a new converter - if the shaft (neck of the converter) is scored, the pump bushing and pump are likely in bad shape. Sounds like the best plan is to rebuild the trans too.

For a mild cam like yours, the stock converter is best.
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Old Feb 20, 2012 | 05:12 PM
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Originally Posted by larrywalk
Hope your not going to just plug in a new converter - if the shaft (neck of the converter) is scored, the pump bushing and pump are likely in bad shape. Sounds like the best plan is to rebuild the trans too.

For a mild cam like yours, the stock converter is best.
Oh my goodness now a guy can't just change out a converter without rebuilding the transmission???
Where will it all end?
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Old Feb 20, 2012 | 05:38 PM
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i agree, put a converter in. call a couple companies that build converters and get one 500 to 1000 RPM HIGHER STALL SPEED YOU WILL NOTICE THE DIFFERENCE!
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Old Feb 20, 2012 | 08:03 PM
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Just to throw it out there. If youre going to pull the tranny to have it rebuilt - now might be a good time to think about putting a 700R into it.
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Old Feb 20, 2012 | 08:30 PM
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Originally Posted by couperdecar
Just to throw it out there. If youre going to pull the tranny to have it rebuilt - now might be a good time to think about putting a 700R into it.
Yes and a $1000 driveshaft and completely rebuild the differential and rear suspension!
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Old Feb 20, 2012 | 08:38 PM
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Originally Posted by Tim H
Oh my goodness now a guy can't just change out a converter without rebuilding the transmission???
Where will it all end?
Oh my goodness, now a guy can't just offer good helpful and constructive advice without someone jumping all over him???
Where will it all end?
Terry
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