Brandon Williams
Newbie
I’ve got a 93 swb gmc and the old 6 is tired. 268k miles only replaced the ac compressor and the ac controls inside. I got a deal on a gm performance 454 crate engine for 2100$ so I took it. Now the build starts. I have lots of questions as it’s my first real build. Such as do I have to get a stand-alone system for the engine or do I just send out the computer and have it redone like I’ve seen some people do? Also, the new engine has the alternator and ac but as I go through this truck is the heater something I’ll have to account for? I have a whole new suspension already purchased and am accounting for the front end weight before you guys start jumping on me about that. The initial plan is drop in the 454, and the performance 4l80 rated for 650hp. I don’t know what rear to go with yet but I do want my highway gears so I can handle a 1-2 hour drive no problem. The Edelbrock heads and throttle body injection system I'm putting on the motor will get me around 500hp and 551 pound feet I’m told. So as far as engine management, ignition, and gauges all working together in harmony..... any suggestions or anybody have done this swap before? I’ve looked through the forum a bit but I’ve seen people went from the vortec to the 454 so I’m hoping I can get help too.