Re 5.7...
I always find it much easier to replace rocker cover gaskets, oil pressure switches and freeze plugs (especially the two rear plugs behind the flywheel)....
New engine mounts...
If front balancer seal is leaking now is time to replace it...check the balancer rubber is ok...
NOTE>>>>Apart from diamaeter, if you replace the balancer make absolutely sure the indexing of the keyway to the timing slot on the outer ring is the same on new balancer to the old one...there are different balancers !!!!!
If there is any sign of oil leaking from rear of manifold, now is time to r&r manifold and reseal it...
Your back will thank you in the future...
Re LS...
The lifter ticking noise is well known and there are lots of posts about it...new lifters, push rods and carriers will usually fix the issue...the damaged push rods and rockers is a big issue....post pics of the damage please.
This is looking more and more like an oil system failure...pump O ring to pickup tube is biggest failure point....pull the pump apart, clean up the inners and post a pic of the inners...
