93 jimmy 4.3 valve spacing

i have a 93 jimmy that has a valve tick i was wondering if anyone coulde tell me what the spacing is

hey all. my mistake. can't adjust the valve lash on the truck. used to my old car. and has anyone ever heard of a cracked exhaust manifold causing a ticking noise? engine checked out all good but the manifold is split. thanks :banghead:

yes a cracked exhaust manifold will give you a ticking sound. The three studs that connect the y-pipe to the manifold are usually the ones that break, and will give you the ticking noise, particularly when the engine is cold.