Will you could look at it a a good thing naw you get to put whatever engine you want if you have a 700r4 or 4l60 and nv 3500 ls is out unless you swap the transmission will maby not the nv3500 but there not strong if you don't beat the truck to hard a big block is what I would do but I would swap to a th400 or 4l80e if you go with a ls 4l60e or 80e with a trans controller fule pump and holley terminator x max camaro temp gage oil prices adapter for the stock truckI threw a rod in my 180k mile ‘92 K1500 with a L05 a couple days ago and am trying to decide how to approach this. I’ve decided that no matter what I do this truck is never going to be a heavy duty long haul power machine so I’m not inclined to spend LS swap money on it.
From what I read a 454 will bolt straight in (manual transmission) albeit I should probably replace engine mounts and will need to beef up the front suspension to handle the extra weight. I found one known good fully dressed plus headers with 130k miles on it for $1k. I need to see if it includes the wiring harness and ECU. If it doesn’t have the ECU but does have the harness, do I need a whole new ECU or just a chip? Any feedback on this with the understanding that I’m just trying to get it up and running with a bit more low end grunt, not making a fast truck? Does the 454 need a bigger radiator? I’m thinking about going electric fans.
An l31 or another L05 are also options but big numbers tickle my lizard brain and with the gearing on this thing it wants to stay from 1-2k RPM anyway which suits the big block. An L31 or L05 also seem to be more expensive than this 454 from what I’ve seen.