Hey guys ive doing some research on some aftermarket cams for the GM 5.3L truck motor. I have found some helpful links but not quite the answers im looking for. I have read that the LQ9 stock cam and the LS1 cam should fit right in and add some more ponies. My question is, is there just a cam that you put in without doing anything else to the motor. I was looking for a med-lopey idle. Has anyone done this swap or can someone give me more information on it? Let me know what you guys think. Thanks!