I don’t know that these heads or other aluminum heads really affect the used market at all. There’s two types of sellers I see in my neck of the woods, the first & best seller (IMO) is the guys who’ve accumulated all these parts over the years & sell them at a reasonable price. AKA know how to price items as cores as necessary or charge a fair value for quality used parts, these guys are aging out & not generally in tune with the current market.
The other kind of seller that I see is the folks who think every Pontiac part was on a “Ram Air Judge Big Block” & ask absolutely outrageous pricing for these clapped out core units, these guys aren’t obviously in tune with the market either or they would price accordingly (again a new aluminum head offering won’t change their pricing strategy) Ever look at asking price of Pontiac Tri Power units? Typically called “trips or 6 packs” by sellers asking insane money for units missing everything & needing full rebuilds…. Again since they were on a “GTO” they are priced more than gold. The large segment of loyalists in this hobby are aging out fast & replaced by fantasy auction house flipper folks who think that what they have is super special because they saw it on a TV show, it’s sad but that’s the reality.
EDIT: The folks on this forum & other forums I frequent are the anomaly to the above rant
