The Cyl. Head Average Intake Cross Sectional Area

[oldbones]

Anyone know the intake runner length for the 2015+ coyote cyl. heads and the average intake cross sectional area?

 

[Shaun@AED]

If I remember correctly when I measured my heads they were around 2.3 inches squared. I was surprised how the runner area stayed very close to the window size of the intake valve seat.

 

[oldbones]

Thanks Shaun, I calculated the ideal avg. port size as 2.212 inches^2 at 8000 RPMs. Anything smaller will push the air speed over .55 mach. So 2.3 seems about right. Without measuring it and making a lot of assumptions I figure that the intake port runner length is about 5.3-5.5 inches.