I have a set of new in the box Mast Black Label LT4 small bore heads. The heads include valves but do not have springs/retainers. Intake valves are stainless and exhaust valves are inconnel (upgrade).
The specs can be found on Mast’s website:
https://www.mastmotorsports.com/prod...pr_seq=uniform
These sell for $4200 with the upgraded inconnel exhaust valves.
Asking $3750