1981 GMC Sierra Classic 408 Striker swap

[Farmboy94]

I have an 81 Gmc that decided I wanted to swap an ls into and initially landed on a 5.3 and found a whole truck that I was going to pull the engine and transmission out of and swap into my 81. But then I got to talking with the guy that was going to do the machine work on the engine for me and he though I'd be better off, with the power level I wanted, going with a Blueprint 408 stroker, and after pricing everything out, I agreed. So I have a couple of questions that I have not been able to find answers too.

1. Since I already have the entire truck sitting in my yard, and I need accessories and brackets, will the accesorries and brackets off of that 2003 lm7 fit on this ls 408 stroker?

2. Would I be better off building the 4l60e from the donor truck and putting it behind the stroker or finding a 4l80e? I want overdrive for this thing, otherwise I'd just find a th400 to throw behind it.

3. Would everything clear accessory wise, frame rails, hood, etc.?


Oh and both the 81 and the 03 donor truck are 2wd, just fyi.

Thanks in advance for any help!