help identify these heads

[dirtracer07x]

they have a dual intake and valve cover pattern. pN#16485906.

[dirtracer07x]

here is another picture

[stock car driver]

patriot performance vortec heads

googled the number added sbc before it

I ran those they are a good head

[dirtracer07x]

thanks i just figured it out also. going to throw them on my Imca mod and make some laps.