W5 Pros & Cons

Pro’s
while they are viable( not leaking, still have integrity) they can support 700 horsepower on a well built stroker motor.

Cons…
porosity issues, on any of them, including the supposedly better blue plug castings.
no one makes headers for them any more, TTI used to and they were nice, I ran them on mine.
They need lots of mods to shine, they come unported, guides are 3/8, 2.02 valves, etc, etc.
both Mopar W5 intakes are mediocre, the Indy intake is the unit of choice

my opinion, go with the -2 Indy heads, or, if you can live with a 650-670 horse potential, the Bloomer heads are a proven option.