[Worldofhurts]

When you say stock are you talking 67-72 or 2005 like the engine it came from and it will fit. Sorry for this is my first swap and talking with people has got me even more confused and is why I came to the forum. I've had some say make sure it's a dual pass some say it doesn't matter some say single pass will work. Some say 3 core others say 4 core cause we live in Vegas and it's hot. The problem is all the great wizards here don't own a classic truck or have done a LS swap.