yes you do have to set the tappets
Yes, to access the tappets(lifters) you have to remove the cylinder head.
no unless you change the size of the rods
long ones are exhaust
The rocker arm.
Being an overhead cam engine, a Neon doesn't have push rods.
Double check the new push rods, they come in many lengths.
It's not really about what rockers you run. If you have guide plates, you need hardened push rods.
A 2002 Chrysler Sebring has an overhead cam engine. That means it does not have push rods.
Yes, it's possible. But the push rods usually take the worst of it.
what should you torque the rocker arms to when you reinstall the push-rods to on a 3.4 pontiac
Any good parts store should be able to get the push rods for you and if they can't try Manciniracing.com.
Pull the valve covers off. loosen the rocker arms with out taking them all the way off. then you can turn the rocker arms to pull the push rods out. replace push rods, and tighten rocker arms back down and put valve covers back on