first to answer that usually a chevy 350 but it has some probs like usually cooling with that said omfg that is by far the coolest thing i have ever frigen seen a viper motor in a jeep i want (drool)beefmobile are there any popular 8 cyl swaps out there?
Wiring Question! I have a 90 yj with a dead 2.5 tbi and 5 spd manual trans. I am swaping out the dead 2.5 and dropping in a 3.1 mpfi from a 91 firebird that had a 4l60 auto trans behind it. I have the wiring harness and ECU (1227730) from the firebird. Does anyone have wiring diagram for this swap? Two issues I know that I have to address: 1. I know I have to address the VATS system in the ECU. Doing that using a bypass system 2. I have not found any information on the automatic trans wiring. Any help or guidance would be appreciated!