The spark plug looks like it is in the center of the cumbustion chamber. Does that mean that the Z motor is a Hemi?

 

hmmm, sure!

 

i think hemi (hemi-spherical) refers to the shape of the head/top of the piston

 

sure man, hemi


big hemi

 

its hemispherical at the lower point cylinder i think

 

To me it looks closer to a 4-valve Cosworth design than a hemi.

1st Picture - Nissan VQ35DE

2nd Picture - New Hemi Head

3rd Picture - Old Hemi Head

 

nice, so now i can say that i drive a hemi?!!! yes!!

 

heh.. "hemi" .. Hey I drive a HEMI!, lol.. that sounds so hillbilly to me.

 

Posers!!!!!!!!!!!11!1!!!!!1!!!1!!!!1

 

HEMI is a marketing term from Dodge. They use domed pistons to allow then to fit larger valves. This was more of an advantage everybody used only two valves. I'm under the impression that it's kinda old school now but Doge doesn't have much else to brag about.

 

That sucks, thats only 2 valves per cylinder. Chrylser as a company is so cheap, they cant put 2 more valves per cylinder.