Why Zero deck?

[TT/Ameasap]

I heard for force inducted engines that they should be zero decked on the block. Meaning top of piston to deck = 0.0

Just wanting someone to explain.

Thanks

 

[novaderrik]

makes it easier to control the quench with gasket thickness, maybe?

 

[49-blues]

Are they talking about the piston in the cylinder or cutting the top of the block totally flat to 0 clearance?

 

[fuzzyGN]

It is cutting the deck of the block so that the top of the piston is even with the deck surface. It is to help reduce detonation by controlling the quench area.