And a curious exercise it is.The unported heads will work OK on a 4.1. The ports are rather small in their original configuration. no stock block will accommodate the extra head bolts......no material in the needed locations.
You will find that the springs you have selected will be inadequate to control the valves at higher RPM (above 5000). I have been through this exercise before. S2 heads require alot more spring pressure even with mild cams
If you are looking for S2 valvetrain components send me a PM. I have LOTS of rockers, springs, pushrods etc for S2 engines.
Yes. As I stated earlier. This would be a perfect opportunity to basically run a mock-up for a high-powered engine being assembled for future use. Of course, it would also have to be an OFF-CENTER application.Certainly does add a ton of complexity! I've been through a full S2 build on my old racecar. Many parts to make. But still could be done with a stock block. Would I do it? Heck NO! But maybe he plans on TA block someday.
Sent from my XT1254 using Tapatalk
This sounds kind of cool I guess. Why not do a high compression carbed NA set-up? This would simplify things a bit for fun street use.I am just doing it for fun .
I have another 274" stage II engine with Champion R heads.
It is just a conversation piece to be different.
It is going in my El Camino hybrid and I am looking at 500HP max.
Juan
Not surprisingly, there are tons and tons to be found. And usually very cheap.wow stage heads not used up
sounds like something Id do . . give it hell )