vtec controller for FD1

[blasdf]

The K20Z3 is the one used in the DC5 Type S. So you get proper VTEC head and lightweight components in the block, plus your usually high RPM intake manifold and exhaust headers. Also, that runs 95 RON minimum instead of the 91 RON that the K20Z2 requires. If you want to change it, do an engine swap. But you'll have to research on your ECU options.

so is the block the same size with the 20z2? could you get someone to modify the engine with the components of the other, or are there too many parts and missing parts on the block for this to happen?

[aaronng]

so is the block the same size with the 20z2? could you get someone to modify the engine with the components of the other, or are there too many parts and missing parts on the block for this to happen?

Costs more to swap components. You're better off replacing the whole engine. Downside is you have to register the new engine with the motor registry.