as above, my mate says that the 2l redtop from a mk2 astra gte had a cosworth-fettled head... im not so sure though, never heard of that...

someone enlighten me please!!!

dre

 

Have heard that the hard is cosworth orientated.

So yes it has something to do with 'cosworth'.


thats all though.





Dave.

 

???? u mean head?

 

I believe the machining was done by cosworth, nothing more.

 

They did work on some heads - but not all of them

 

yes BUT they couldnt call it cosworth due to not owning the name was the storey i heard

 

its called a coscast head

 

yes, i domean 'head' not hard.





Dave.

 

ok ok


when vauxhall decided they wanted to go to a 16v engine ( the xe) they took the 2lt 8v engine to cosworth and asked them to design and make a 16v head to fit that 8v bottom end so the 16v vauxhall lump was born

a couple of thou were made at the cosworth facory and stamped coscast these were fitted to early 2lt16v xe's

vauxhall for some unknown reason then decided they know better than cosworth and decided from now on they would make there own heads and change a few things with the casting

so the gm head was born it is not much diffent to the coscast head but one prob was discovered later on in life one of the oil gallerys runs to close to the water gallory what happens is ppl over tighten the head studs which causes a fracture between these two gallorys giving us what you have prob all heard from the vauxhall world a porous head (symptoms are like a head gasket failure oil in water )

 

 

I suppose you "do mean" that

Must have had the raging horn dave and had hard on your mind