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.
Double check the new push rods, they come in many lengths.
Being an overhead cam engine, a Neon doesn't have push rods.
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.
You must be talking about a CARBURETOR. They are called metering rods. They control how much fuel flows through the jets in the carburetor as you push the gas pedal. They can make a engine run lean or rich, by changing the air/fuel ratio.
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.