ls swap
 

Any useful info welcomed on ls swap in a 68 short bed. As for radiator, trans cooler, wiring, Drivetrain, fuel system with stock in cab tank, anything helpful thank you

Re: ls swap
 

All the information you're looking for is over in the LSX swap section. I just finished my swap last spring. Best thing I've done to the truck.

Re: ls swap
 

As noted, there's an LS swap section here:

http://67-72chevytrucks.com/vboard/f...play.php?f=206

But I can give some quick answers to your questions.

Radiator: I used the stock one, with 2005 Silverado hoses.

Trans cooler: The one in the stock radiator works unless you're doing something crazy (or have reason to suspect it's full of crud).

wiring: Lots of options here. You can run an aftermarket standalone ECU (that's what I did), run a stock ECU with a professionally made engine swap harness, or a stock ECU and mod the harness yourself, depending on your needs, skills, and budget.

Drivetrain: If you want an automatic, a good option is to get the engine with its matching 4L60E or 4L80E transmission as a set. You'll have to modify the driveshaft to make it fit. You can get just about any transmission that fits behind a small block Chevy to go behind an LSx if you want.

Fuel system with stock in cab tank: Yes, it's doable; I stuck a Walbro 255 lph fuel pump intended for a Mazda Miata in my stock tank. If I did things again, though, I'd use a tank mounted under the bed as I still sometimes have a gas smell in the cab and I don't like that. Plus, an electric in tank pump is pretty loud - a pump under the cab would probably have been a better choice, but I wanted to see just how easy a low buck in tank fuel pump conversion would be.

Re: ls swap
 

We make bolt-in conversion radiators and we also offer a forum member discount:
http://67-72chevytrucks.com/vboard/s...d.php?t=590670
http://www.rndfabrication.com/images/C10-earlyA.jpg

We can build it for any engine set-up including the LS (no additional charge) and include a free steam port and built-in trans cooler if needed.

Re: ls swap
 

Another good place to research are the build threads. There are a ton of great LS builds going on right now. Good luck.

Re: ls swap
 

http://67-72chevytrucks.com/vboard/s...d.php?t=468341

Here's my build thread for my 68 short/wide.

-Josh