I'm sure it will work in a 5.3. I don't know the rpm range but the cam comes on hard at 3000 and up. It has a lopy idle but daily driveability was fine in my 6.0. When I bought it TSP said I could use it with or without a stall.

 

what lobes did they put it on?

 

Here is the grind# 3720R/ 3724R HR12
That's all I have and know.

 

Ttt...

 

Still for sale any interest from anyone or should I make a mailbox post out of it?

 

ttt...

 

ttt...

 

would it be to much for 4.8

 

Not for sure on a 4.8.
Ask on here and someone will know, or use the search.

 

ttt...