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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: ssdents on October 07, 2018, 11:09:10 pm

Title: Transmission question
Post by: ssdents on October 07, 2018, 11:09:10 pm

I bought an '82 short bed a couple weeks ago. Previous owner said it's a 383 stroker with 3.73 gears. I don't want to change either characteristics, but I want to be able to take advantage of them and be able to run on the highway at a relatively low rpm. What transmission should I look at? Some have said a 4l80e, but the current setup is not electronic. Is there a non-electric version? Pardon my ignorance. Transmissions have always confused me.

Title: Re: Transmission question
Post by: Irish_Alley on October 08, 2018, 12:50:13 am

700r4 is the only one you can go with without a computer from GM. you can have it built up to handle the 383

Title: Re: Transmission question
Post by: Rapid Roy on October 08, 2018, 06:19:17 am

Welcome.

Title: Re: Transmission question
Post by: Captkaos on October 08, 2018, 06:01:16 pm

Second what Irish said.

Title: Re: Transmission question
Post by: Stewart G Griffin on October 08, 2018, 09:11:18 pm

Can you take a pic of the pan?

Title: Re: Transmission question
Post by: 75gmck25 on October 09, 2018, 07:03:57 am

You can buy an external controller to run the 4L80 or a 4L65 without the stock computer, but it looks like the typical price is about $600 for the controller.  It would probably be cheaper to have a 700R4 rebuilt to specs that would hold up to the power of the 383 stroker.

Bruce

Title: Re: Transmission question
Post by: Irish_Alley on October 09, 2018, 09:25:04 am

i have a "black box" on my cummins/4l80e. it was i think 300, some say its a "bad" setup because it runs full line pressure. the only con i see is that it made an automatic trans into a manual

Title: Re: Transmission question
Post by: ssdents on October 10, 2018, 09:58:02 pm

Thank you for the help.