LS swap for my 75

[lowrodderchev]

I notice my 75 blazer is getting a little tired. I debated back and fourth about getting rid of her and getting a new truck but after 2 people saying "get new truck" and like 20 saying "your stupid if you sell her" guess what I'm keeping her. right now I'm running a 350/350/203 part time conversion. I'm going for a LS swap 5.3 still debating on a 700R4 or a 4L60E transmission. the other thing is the 203. its fine now so do I keep it or get a 205 since I have it apart? and if I do a 205 is there a certain year I need to look for. I like having the option of occasionally towing if I have to which is why I want a bigger transmission plus if I'm putting a LS I'm defiantly going to want to be doing a lot more long distance trips so I'm guessing the overdrive is helpful on the freeway. so any input guys? thanx