CHEVROLET VORTEX CYLINDER HEADS
Seasoned beater pilot.
Joined: Jan 2007
Posts: 5,468
From: Chicago
HUH?
I'd ask some Chevy guys.
We are the Olds guys.
Here's a link anyway.
http://www.chevymania.com/tech/vortec.htm
I'd ask some Chevy guys.
We are the Olds guys.
Here's a link anyway.
http://www.chevymania.com/tech/vortec.htm
Junior Member
Joined: Oct 2004
Posts: 2,212
From: Southern CA
Moderator
Joined: Jul 2007
Posts: 18,225
From: Edmond, OK
You could also scratch the heads with your finger nail and taste the metal. If you detect a hint of minty freshness it is a Chevy part. Chevy engines are made from hardened toothpaste, that is why they have 4 bolt mains. 
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