Creation of a 2003 ZR2 V8. Hopefully we can make this a good teaching thread.
Hello everyone, like many of you, I've caught the mod bug and have decided to swap out my 4.3 for a Vortec 5.7. I got the engine from a junkyard with 102,000 miles on it for about 600 bucks. It came with all the accessories on it and whatnot. The motor is sitting here waiting to be put in, and i hope to make this a thread to help others who might be interested in the swap. So here is what I have so far in order to do the swap:
-JEGS swap in a box kit with motor mounts, headers, and oil pan.
-45* npt fitting for knock sensor
-MPFI upgrade for v8 already installed.
Im fairly sure that the first two are the only two things I need to get the engine to physically sit in the vehicle, as for making it run, theres my questions. I know I need to do the fuel injector wiring for two extra cylinders as well as repinning my ECU for several things. My question is: why cant I just use the harness/computer off of the van?