Which of the three heads you mentioned make the most HP?
* Mazda B series (B6 from Miata was 115 hp)
* Mazda Z series (Z6 was 105 hp)
* Nissan E series (E16 was 70 hp)
* Nissan GA16DE (116 hp stock)

E-series head doesn't seem worth swapping. There others are great and all comparable.

I guess its not always about hp but that something different
also a way to get efi and even turbo with a cheap ecu.

However looking at power for sure the E series is down in that
department unless using boost which they all would even out.

Some E series have made as much as 450hp and even more however
realistically 150-200hp atw is a dream for most of us.

The twin cam 16v conversions would all be close as they are
based on 76-78mm bores where design restrictions are similar

Yet most of these engine heads are restricted from factory
to achieve certain hp that dont overshadow bigger capacity
offerings which would cause marketing issues otherwise.

here is a nice setup to free up some flow on mazda b6 heads
http://buyee.jp/item/yahoo/auction/b180029727

Been reading this post...vauxhall is called Opel in europe...and there is a X14XE engine...in other words...a 1.4 twin can head...

So this could be a better fit for an A14?

Anyone know anthing about the head in the X14XE engine?

This engine are in the Opel Tigra's, Opel Corsa B...and i guess Astras

Here is some info i gathered...

Engine Model Displ. Power Torque Fueling System Valvetrain Compression Ratio

X14XE(Ecotec) 1398 cc 66 kW @ 6000 rpm 125 N

And in europe...we have a lot of opel...so getting a head of these would be easy...

nah everything is easy ...leave the setup as it is(Cam in block driving, the distributor etc) remove the pushrods and get a front pulley made up two drive the overhead cams.

If i get it 2 work will let u know what engine it cam off of.

Should be finish setup by end of july. If it works..

If it was as easy to do as it is to say, then we would all have one, but i have had a head on an A series block myself & it is one of those jobs that will take longer than a weekend to do.

I wish you every success.

The Engine that the head came off of, is capable of 265bhp and its a 1600cc engine. So i think an A12 can get around 180bhp with this head or 200bhp bored to 1400cc.

Oil holes will have to drilled in the head, and oil returned from the head to the block will have to run externally.

The head is off a Vauxhall 1600cc engine.

I am amazed that there are several engines that seem to use this head bolt pattern & cylinder spacing.
That brings to three, the number of engines with DOGC heads that share this pattern [Mazda, Nissan & now Vauxhall] I wonder what else used this engine. Do you have an engine model code for it?

X16xe(l) is the engine Code.

Wat mazda engine heads 'almost' fits the a series.

The fiat TC 8v heads carry a similar bolt pattern but the oil and water holes r all over the place.

Will post a pic of that 2mor

the vauxhall engine is a 79mm bore so that would be oversized pistons alreeady 4 the aseries(not use about there strenght).

The pistons have a 20something compression height so u wud have to look 4 longer rods

I don't know what Mazda head shares this pattern, but there was another thread regarding a Nissan head on an A series & i seem to recall that someone wrote in saying that they had tried to fit a Mazda head some years earlier as it had shown some promise.
I don't believe that the exercise was completed.

...Mazda B6 head out of a 1.6L MX5/Miata.

This vauxall head looks better matching than the other previous heads by the looks of it.
Feral any commments compared to your project?

A series OHC
Pulsar exa 1997 yes
Mystery cherry racing crossflow Head 1974?

A series TC....
Vauxall xe series (GM?)
Mazda b6 (Ford)
Nissan ga16

L series TC.....
ka24e 2004 yes
Ka24de 2004 almost?
OSgiken 1973?

Was this engine used in anything that was sold here in Australia?

Dont know about AUs but, that engine came in Corsa's and Mk3 Astra's.

Yeah, we have cars with Astra badges. I had always thought that they were re-badged Opels. They probably are & the Vauxhall is probably the same car.

by the time u r don how mutch money will u spend + how do u no it will run good or bad

How do you know you will wake up tomorrow?
You dont. But that doesnt stop you sleeping.

Could it be the same head found in barina sr the 1.5 or 1.6 sports version? we need a year for this head and see if we can trace it here with the other whoreden cars.
The astras here are ususally 1.8 or 2ltrs and maybe over. The calibra is 2ltr and 2.2ltrs.

will see if i can get a year for the engine...

But its out of a MK3 astra(what ever that cam out)....thing they r also called the ECOTECH engines.

i thought the ecotec engines in the holden/gm range were 3.8L v6s that came in commodores

the smaller engines are ecotech as well..

The year of the head is irrelevent...

I mean...the opel kaddet was made in (about) 1984

In Australia we got that engine in the Daewoo 1.5i and the cielo.. (about 1993 - 1998????)

So this job from Barbados?????? might be a similar situation. Years won't help, but may confuse more.

Quote:
Opel cars bearing the Kadet name have been made since at least the early 50's, so the Kadet name by itself isn't too much of a help.

You're kidding, right? What's with those combustion chamber(s)?

Isn't that what they call a 'pent roof' combustion chamber design?

Im still freaking out how close this head matches up to the A!!!!
Which ones are the oil drain holes on this head? are they different to the A series?
sorry to sound absurd

Quote:

Sorry Lost the thread...

Notice the water hole at the back is the Little Hole in the middle of the head.The two oil holes at the side need to be welded(at the top) and the one water hole expanded to match the head gasket some what.

The Two Oil Holes at the front will be block since they will become now useless. But a hole will be drill diagonally to the exsisting oil hole from the one being drilled where the 1200 gasket indicates it should be...This will also be for the front...on the right side of the Head.

fcuk......problem now is getting oil to the left side of the head(Exhaust Camshaft)

Any Ideas????

Then add Some boost on top of that if u like n your flyin



Once it all works together doh

Has Any one had any sucess in fitting a twin cam head yet?
I am just geting ready to start doing one for my mini sprint so any pointers would be appreciated.

Yes, this is the GM Opel engine (out of Germany). Now called "GM Family 1" engine.

The X16XE engine is a DOHC version and branded as "Ecotec". It features
* sodium-filled exhaust valves
* cast steel crankshaft
* sequential multiport fuel injection
* 10.5:1 compression ratio

It was fitted to these vehicles:
* 1994–2000 Opel Corsa
* 1994–2000 Opel Tigra
* 1999–2005 Opel Zafira
* Opel Astra
* Opel Vectra
* 2004–2008 Chevrolet Viva
* Fiat Stilo
* Chevrolet Corsa GSi/GLS
* 1995-1999 Holden Barina GSi

The 1.6 was never sold in USA as far as I can tell, but Daewoo used other versions of the GM Family 1 engine, including:
* Chevrolet Aveo/Sonic (1.4 and 1.8 engines)