Bigger Cylinder Head.

**daf.vinci** · 27th April 2009, 14:07

I have a 1.8 engine,and was wondering if i can improve its performance by bolting on a 2.0/2.2 head.
Or possibly having the 1.8 head bored out to either of the above.

Would this work?

I already have a large cone filter,aftermarket rear silencer,and a resistor chip on the airflow sensor.

**Penfold101** · 27th April 2009, 14:10

Or sell it and buy a 2.0 Turbo - easiest way of doing it dude...

**mattolly86** · 27th April 2009, 14:14

in a word no, the engines will be different mate and you'll proably find the water jackets, oil feeds dont match up

**daf.vinci** · 27th April 2009, 14:51

Was just a thought.
Would it be possible to have the haed bored out though.

Or would it be better in the long run to get hold of a Z20NET engine and fit that instead.

**Penfold101** · 27th April 2009, 14:52

Save yourself the time and money and just buy a new car with the 2.0 Turbo in it mate - cheapest way of doing it and opens up all sorts of power options with BSR etc...

**daf.vinci** · 27th April 2009, 15:02

Thanks for the advice m8.Will have a brows for one now.

**rushy** · 27th April 2009, 20:54

If you port the head of the newer Z GM lump the ECU throws a fit. Unless its in say an older Astra ot corsa which your lump is the newer ECU's wont allow that much tolerance, the only way round it is with a stand alone ECU, but that wont work as you wont be able to tie it in with the Canbus.