I don't use it on the o2 sensor. Plus...when it burns off it is after the o2 sensor anyways so it doesn't matter.

Quote Originally Posted by Scimmia View Post
A set is pretty cheap from gmpartsdirect. Ordering a set of lifters for the 3800 *should* get you the LS7 lifters, assuming they don't have any old stock lying around. Most people buy the set of 16 for the LSx because they specifically say they're the updated design from the LS7.

The part numbers have been posted on here, I'm sure a search would turn them up.
Yezzir...just go google LS7 lifters...buy them as a set from a Corvette sire or something...I got mine for around 100 shipped IIRC.