if you are talking lash adjustment then yes and no. if its an aluminum head the rocker studs get torqued to 22 foot pounds.if it is cast then the lash is adjustable.
Intake valves are larger than exhaust valves, and are aligned with the intake runners on the intake manifold.
If its a small block it's endless. Small block parts interchange alot.
replace the engine with a small block chev
It is written in small print on the SIDE of the tire.
I think they still make a chev. S10
Blocks with the 010 casting number have a higher nickel content and are more desirable for performance applications.
It is on the fire wall, to the right of the master cylinder, It is small
If it has points then it is .019, You must be working on something old.