Another Ls/L94 swap questions

[Burntoutaccountant]

I acquired a l94 motor I’m going to swap into my 89. I’ll be running a Holley terminator. Mild cam, DOD delete, stock heads, shorty headers, upgraded lifters, stock rotating assembly. I’m also swapping a 14 bolt to the rear for reliability over the 10 bolt.

- What are the best motor mounts to use to adapt a LS to our trucks?
- I know the 700r4 will bolt up, but is it strong enough to handle a mild cam 6.2? I assume not.
- what’s needed to swap a 6l80? This seems like a straigh forward swap and moving the transmission crossmember back combined with new driveshafts. My question is more related to the shifter column. Can I get the linkage to go to the oem column?
- if I swap in a 6l80, what transfer case should I use? I’d prefer to keep it a manual transfer case.

 

[Erik the Awful]

I know the 700r4 will bolt up, but is it strong enough to handle a mild cam 6.2? I assume not.

I think it depends more on how you drive it than the horsepower level. That said, I'm pretty gentle on transmissions, and I wouldn't put a 700R4 behind a 6.2. Those came with a 6L80 for a reason.

If you're going to run a Holley Terminator, you might as well step up to the X Max and have it control the 6L80.

Holley EFI 6L80/6L90E Transmission Controller for Terminator X MAX!

Terminator X MAX users, unlock the full potential of your GM 6L80/6L90e 6-speed transmission with Holley EFI’s Transmission Controller. Using Terminator X MAX along with our Holley EFI Transmission Harness and handheld, you can control GM’s 6 Speed transmissions in addition to complete engine...

www.holley.com

Also, the 6L80 swap has been done and documented, albeit behind an L31. On page two he mentions the shifter linkage. Here's the link:

L31/6L80e

Well, my first official post here. As the title states, I am in the middle of swapping my 4L60e to a 6L80e, yes, behind the L31. I've done countless hours of research and contacting companies on how and what the swap would entail. Some of this swap is trial-by-error. I haven't really seen any...

www.gmt400.com