Vortecs? - Can somebody identify/rule out

[blownamigo]

Bought this motor a while back. Can somebody tell me what kind of heads these are?

http://www.razorblade.ch/admin/posts/syty/builtmotorpics002.jpg

The motor is a McCoy race prept motor prob. with stage 2 heads, done in 2001 or 2002.
Does anyone remember what McCoy stage 2 was?
Do stock valve covers only fit stock heads?

thnx
Blown'

 

[dgoodhue]

Re: Vortecs? - Can somebody identify/rule out

Stock valve covers fit the Vortec if you bend the corner. Pull the valve covers off and look at the casting numbers. McCoy Typically used a double intake gasket on their Vortec heads vs Weld intake manifold. You could also pull the intake and see if the heads have extra intake bolt hole locations,

 

[4C FED]

Re: Vortecs? - Can somebody identify/rule out

I see double gaskets on the intake.
An easy way without removing anything is look at this pic.
See the bolt by itself below the dipstick bracket, above the #2 ex. port?
If you have a bolt hole there, those are Vortec heads.