5.7 to 6.1 swap, engine stalls out
I have a 2007 dodge magnum 5.7 that has a blown head gasket, i had a 2008 dodge charger srt8 motor/ tranny that i pulled from a car of mine that got totaled out in an accident. i put the SRT8 motor into the magnum. When i got the car out the shop, the car stalls at stop lights/signs. i went to a performance shop that told me that i needed to install the SRT8 tranmission and get a mopar TCM. I ended up installing the SRT8 tranny and after about a month of driving the tranny went out and had to re-install the original 5.7 tranny back in. I am sitll having the same issue where the car stalls out at stop signs/ lights. The same performance shop still says that i need to change the TCM, ive tried to look at forums and cant find one that is specific to whats going on with my magnum. PLEASE HELLLLPPP!!!