Will NB head bolt to a NC block ???

[miatadave22]

I like the idea of the larger displacement 2 litre but am not excited about the NC flow characteristics. Any and all input appreciated.

[ctrench]

im pretty sure that the NC is a total redesign of everything from previous miatas, so i doubt it would work... if your looking for more displacement do some research on the FE3,(http://www.solomiata.com/FE3info.html) its a nice little motor and can make good torque/hp

[jux]

If you want a 2.0, you get to overbore a 1.8 BP. The NC engine isn't slightly compatible with components from previous generations.

[Johnnie]

The NC motor is the Mazda MZR/Ford Duratec. Completely different architecture with solid lifters, chain driven cams, etc.

[3MiataFamily]

Not even close...