Converting my M1008 to 12v with a 454/ ended up going 5.3 LS with 4l80

[86m1028]

does anyone know if a tbi stock wiring harness with bolt up to the stock fuse block in the truck ? or do i need to change it out ? also when switching to a 454 can i use the stock torque converter or do i want to get a gas torque converter ?

 

[Cucvnut]

 

[Cucvnut]

Almost Done with Wiring in the LS to the stock harness, I should have a test fire this weekend.

 

[Recovry4x4]

Almost Done with Wiring in the LS to the stock harness, I should have a test fire this weekend. View attachment 808319

Looks good. I've been pondering the LS for a while.

 

[Cucvnut]

 

[Cucvnut]

Newest picture. Lq9 4l80 np241 complete.

 

[Ilikemtb999]

And how’s it driving? I assume much more usable power