Destroke D14 with d12b1 crank

[mouluh]

I want to make a car that is fun but also fuel effecient.
So I was brainstorming to make a 3stage vtec with a destroked d14block with a d12 of d13 crank and small turbo.

I was wondering if the bearings are the same.
And wath is the rodlength of a d12?
And how mutch can I mill the head en bock to get piston-deck heigth off 0mm

[saxophonias]

why don't you get a d12b or a d13b instead?

[mouluh]

These blocks don't have a vtec oil channel. And the pistons don't have the wright design for lean eco driving