What kind of exhaust port pattern does teh 82 2.5L I4 have?

same as a V8 pontiac sbc?

pictures of a V8 head?

pics of I4 head?

thanks

 

The 2.5L 4-banger 'iron duke' in these cars was based on the 301ci Pontiac V8s. I would imagine the exhaust port layout would be about the same.

 

I doubt anyone here has disassembled an iron duke. No point, they're the shame of the thirdgen world.
Try a Fiero forum or something. Someone out there must be hot rodding a 2.5L. I can almost guarantee nobody here is
Lots of pics of V-8 heads though, just search around. Check sitting bulls famous thread if you want.