Hey City,
Check out Tom Lamb's LS build here
http://67-72chevytrucks.com/vboard/s...d.php?t=346598
Here is another thread on the subject
http://67-72chevytrucks.com/vboard/s...d.php?t=364782
More good info here
http://67-72chevytrucks.com/vboard/s...d.php?t=371020
There are many more threads on the board for these swaps. The LS motors are awesome.
Here is my swap in progress: