I want to buy a LT1 camshaft for my GM LO3. Are there differences between
LT1 camshafts ? What do I need ?

 

I found this chart in the "LT1 cam digest (the ultimate one)" sticky, defenally study it if you havent already.

LT1 cam digest (the ultimate one)

http://www.malcams.com/legacy/misc/CamData.htm

I put a used 94-95 LT1 STOCK one in my LO3.

20 years ago during the summer vacation I was working in a car shop that did special car transports, we whent to the airport and picked up one of the original kitt birds and keept it overnight before bringing it to an exposition.
I remember studying every shape of it, sitting in it watching the little tv, and playn with all the possible lights and sound combinations, the entire afternoon

 

Is this the same like in the Corvette LT1 ??

 

imho the Y-body and F-body LT1 cams were the same. only B-body are different, being optimized for more low end tq.

btw: grüzi