[NeilD]

Sorry to ask again lol, but I've heard it mentioned a few times.... Whats a coscat head?? Is there any difference and what cars did they come on??


Cheers,

Neil

 

[LEE69]

Here

 

[blued]

Coscast head is sometimes used on the C20LET (Turbo). The heads made by GM became porous due to an oil way running close to a water channel. The coscast heads did not have the same problem. Some cars had the GM ones, some had the Coscast but no pattern.

There is some more info in the buying guide on CavalierTurbo.com

 

[NeilD]

Thankies, All is made clear now!

 

[Topbuzz]

or here
http://www.topbuzz.co.uk/info/porous_heads/porous_heads.htm