Hello all,
I have pretty much decided to go with a 4L80E swap in my 1977 K20 pickup. It has a sbc 350, np241 and 4.56 gears. Unless there is some new information as to why i need to scream down the freeway at 2900 rpm....im gonna go with a 4L80. I know the th400 is a badass trans but mine is...
I figured I'd hop on here and make a build thread for my current project like so many of you guys have. I think after attending my first blazer bash my inspiration and desire to dig back into my truck was renewed.
This is my 1978 GMC JIMMY that has gained the nickname Nightmare due to it...