Questions about heads for 383 stroker

I am a rookie when it comes to putting an engine together. I have a 350 sbc (already .030 over, 3.75 crank) looking to make a 383 stroker dirt track engine. I have a set of World Products S/R I-052 heads. The guy I got the WP heads from had them on a 307. Am I wasting my time even contemplating putting them on a 383?

Intake Runners: 170cc Port Dimension: 1.940” x 1.170"
Exhaust Runners: 65cc Port Dimension: 1.345” x 1.370”
Intake Valves: 1.940”
Exh. Valves: 1.500”
Combustion Chamber Volume: 67cc
5.565 rods
Not sure on pistons, they are dome tops out of another 383 but only number on them is 3502??? I am guessing -3.00cc or so

http://www.worldcastings.com/product...f_file-287.pdf

Thanks!!!