Looking for stainless replacement valves for 340

12many said
How bout these? Ferrea Stainless Valves Chrysler Mopar Dodge 340 W2 Intake Exhaust Set 2.02 1.60 | eBay

PRH said
The Manley 11781 & 11782 are the correct length, as are the Ferrea F6244 & F6249.
I have used them numerous times.
They have single lock grooves.

5.01” long SBC valves work as well, but the tip heights will end up .030-.040 higher.

Hey fellas,
Would these valves be for the ecno or race W2 head?
If not, which ones? Thanks in advance.