OK i couldn't find this but i may not be searching for the right things but anyway...is the Z's block open-deck, closed-deck, or semi-closed deck?

 

Open deck, but not like the Hondas. It is only open about 2.5" deep.

 

what do all these terms mean: open-deck vs. closed deck?.....

Thanx in advance

 

Open deck means the cylinder walls are not solid all the way the block. With an open design, the cylinder wall is bathed a channel of coollant...hence...open deck...think of it like a moat around a castle.

In a closed deck, the cylinder bore is created from the block....so its solid...no moat.

 

So the advantage of open deck blocks is that they have better cooling capabilities but result in a decrease in strength. Is it possible to convert an open bloack deck into a closed deck? I always read about people talking about doing it to the VQ, but it doesn't seem like it would be an easy task.

 

AEBS sleeves would convert it to a closed deck.

 

Correct....you can resleeve an open deck design by removing the stock cylinders and replacing them with cast iron sleeves. Some are vented slightly for coolant...others are solid.