They say a 1993 Civic CX is slow because of the 8 valve head.

Can I bolt on a 16 valve head?

Not looking for a rocket, just a little more power, at a cheap price. (I know that REALLY doesn't exist but....)

 

If I remember correctly, the bottom end of the CX is really flimsy. But I believe the head swap would be possible.

 

Do the CX pistons have the valve reliefs for a 16 valve head?

 

I doubt the right valve reliefs are there.

SOHC VTEC and LS motors are both pretty cheap and they bolt in, I don't see the reason to stick with the CX block.

 

Bolt in is the main idea here. But how "bolt in" is bolt in.

I have my Civic, this car is suppose to be for the wife, so I can't go too crazy.

I have a 93 DX motor here. Is it a drop in to the CX. I would probably need to use the CX intake I presume in order to keep the wiring harness the same.

If it's a drop in, I'll just do that for the extra 20 Horses.

 

i assume that the dx is strait bolt-in, but i dont have much experiance though...i am also under the impression that the b-series motors are also, all i think you need is ecu and motor mounts for that engine, as long as its an obd I engine and ecu it should all plug right in

 

Yes u can bolt up a DX 16 valve head to a CX block
i did this on my car. IT works fine the blocks are the same jsut the head are diff. I had not prob.

 

Update:

CXs have 4 reliefs.

https://www.honda-acura.net/forums/s...threadid=26729