LX9 head cross sectional cuts

[ericjon262]

I cut up a set of LX9 heads, I figured the pictures could be useful, if you would like to see something specific, let me know.

[SappySE107]

You should make a port mold and then use rods to extend the pieces from it. Would be a cool art piece

[Frank Reiner]

What is known of the port configurations of the LX9 (above) vs. the LZ4/LZ9 heads? The intake ports at the manifold face are different, but below that, what, if any, differences?

[ericjon262]

What is known of the port configurations of the LX9 (above) vs. the LZ4/LZ9 heads? The intake ports at the manifold face are different, but below that, what, if any, differences?

they are completely different.

[SappySE107]

The exhaust ports are basically identical. I wouldn't say they are completely different on the intake either. Both splayed valve with the same guide location/angle, and raised ports like the LX9. Bigger port, wider at top than bottom, but otherwise, id say its more similar than different.

[Frank Reiner]

The exhaust ports are basically identical. I wouldn't say they are completely different on the intake either. Both splayed valve with the same guide location/angle, and raised ports like the LX9. Bigger port, wider at top than bottom, but otherwise, id say its more similar than different.

Have you flow tested the LZx style? I looked for a thread, but did not find one.

[SappySE107]

I uploaded some a long time ago but I don't know where exactly. I also have the flow with the different upper intakes on it. I should just have that in the articles for this site, so ill work on that and post a link.