hi mark_1.6
sorry i can't give you an answer to your question.

but i would be very careful as you have to take into account the clearances between your valves and pistons.
make sure you look into this as deeply as possible.

tom

p.s. i would be very suprised if this is possible!

 

Would be easier to stick in a X16XE (preferable) out of a Tigra/Corsa or a X16XEL from another Astra or Vectra B. This would be much easier than having to make bits and then find out it doesn't work.

With an induction kit, all you will probably get is noise but because its open to under bonnet temperatures you will probably loose power due to heat soak

 

I believe the pistons are different. As said it's much less work to do an engine swap.

 

took a 16 valve cylinder head off a tigra and the pistons are the same as the 8 valve

 

port the 8 valve cylinder head,get head skimmed,decent plugs and leads,
is you 8 valve mpi or spi

base line settings going green

 

took a 16 valve cylinder head off a tigra and the pistons are the same as the 8 valve

That depends which 16v and which 8v.
There are a few different engines that share the same basic block.
Some 16v heads will go on some 8v bottom ends but its a lot less work to swap the whole motor. If yours is the base 1.6 spi it'll have the base bottom end in it, too. There are a few minor differences that mean it won't be as reliable when running at 16v revs/power.

There's also the option of fitting an X18XE1 which is 1.8 but based on the smaller 1.6's block. Its a straight bolt in so you just need engine, engine loom, ECU and chipkey.

It all depends on what you want to acheive and how much you want to spend. If you just want a little more power cheaply you're better off getting the air coming in cool rather than cooking it under the bonnet. After that you'd be looking toward the exhaust and after that porting the head and maybe a fast road cam.
Trouble is that you'd then have a reasonable power gain but you would have spent quite a bit on tuning that you'll never get back.
Its usually cheaper to buy a car with a larger engine (2.0 astra) and spend the extra on insurance.
The car is also more reliable as its not under any extra stress.

 

car passed mot/astra f
base line engine settings going green

 

That depends which 16v and which 8v.
There are a few different engines that share the same basic block.
Some 16v heads will go on some 8v bottom ends but its a lot less work to swap the whole motor. If yours is the base 1.6 spi it'll have the base bottom end in it, too. There are a few minor differences that mean it won't be as reliable when running at 16v revs/power.

There's also the option of fitting an X18XE1 which is 1.8 but based on the smaller 1.6's block. Its a straight bolt in so you just need engine, engine loom, ECU and chipkey.

It all depends on what you want to acheive and how much you want to spend. If you just want a little more power cheaply you're better off getting the air coming in cool rather than cooking it under the bonnet. After that you'd be looking toward the exhaust and after that porting the head and maybe a fast road cam.
Trouble is that you'd then have a reasonable power gain but you would have spent quite a bit on tuning that you'll never get back.
Its usually cheaper to buy a car with a larger engine (2.0 astra) and spend the extra on insurance.
The car is also more reliable as its not under any extra stress.

if you use/uprate to heavy duty mains and big end bearings then should be no problem already have heat shielded induction kit plus loads more as well

 

if you use/uprate to heavy duty mains and big end bearings then should be no problem already have heat shielded induction kit plus loads more as well

Yeah but I'd look at the oil pump settings, too. Sometimes the pressure relief spring is a little stronger in higher output engines using the same pump. Otherwise pick the right head and yeah - you're good.