Quick question, about 8v and 16v

[Davin_L]

Okay so I need to rebuild my engine, I have a 1.8l 8v now my question is, would a 16v head fit my stock block? And if so what head would fit and is it worth it performance wise? My engine code is HV

[panic-mechanic]

Younwere pleading budget and trying to half do the repair. Now you want to do a very much more expensive thing as you have to get A LOT of stuff to make 16v work there. Also HV does not have a block breather so always issues with breathing. You do get an extension that fits on the oil cap hole to do that but theynstill tend to breathe quite a bit with that setup.
So unless you have everything to make a 16v setup work you are probably in for around 15-20k before it is done.
Pistons
Head
Timing belt
Timing pulleys all 3
Intermediate shaft
Oil pump and blockoff with gear or you have to leave a dissy in place in the block with no cap or modify one.
Different alternator and bracket
Crank pulleys
If on k-jet different injectors and pipes plus idle valve setup with it's electronic control box
On aftermarket you will have to get a fuel rail made up.