Vortec Head Casting Numbers - HELP?
Thread Starter
Instructor
Joined: Dec 2006
Posts: 207
Likes: 0
From: Keller TX
Vortec Head Casting Numbers - HELP?
Can anyone tell me anything about a vortec head casting #12558060? Looking at a used motor. How do I find info on this?
Any help would be appreciated.
Doug
Any help would be appreciated.
Doug
Race Director
Joined: Nov 2006
Posts: 19,445
Likes: 353
From: Athens GA
St. Jude Donor '12-'13, '15- '16-'17-'18-'19, '21
You will get access to many sites.
Actually doing this last fall is how I found this forum.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
casting numbers are only half the story the application it was used inis the important part.........the vortec heads for trucks had hardened exhaust seats which don't flow as well.
Drifting
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
What exactly do you want to know? The Vortecs are some of the best flowing stock heads that you can use for a mild to medium build. However, you cannot use a large lift cam without some machining, and most people recommend pulling the pressed in studs in favor of tapped in studs.
They also have a good combustion chamber design and an advertised 64cc combustion chamber. The stock heads have 1.95/1.5 valves, but you can machine them for 2.02/1.6 valves.
They also have a good combustion chamber design and an advertised 64cc combustion chamber. The stock heads have 1.95/1.5 valves, but you can machine them for 2.02/1.6 valves.
Thread Starter
Instructor
Joined: Dec 2006
Posts: 207
Likes: 0
From: Keller TX
Thanks for the info. Looking for a used, rebuildable motor. I'll find out if this was a truck motor.
I'll search the web on the casting number.
If the heads are good, I thought I could save some $ since I was going to buy Vortec heads anyway.
I'll search the web on the casting number.
If the heads are good, I thought I could save some $ since I was going to buy Vortec heads anyway.
Burning Brakes
Joined: Oct 2004
Posts: 904
Likes: 0
From: Murphy NC
They are all truck motors. The 906 casting is the ones to avoid so you are good. The block is also a roller cam block so you can upgrade to a bigger cam. The heads can only take about .480 lift without machine work but you can buy the tools to do it at home for about $80. A machine shop would charge about the same. The heads alone are worth about $250 so if its a cheap motor, ****** it up!
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
google this in the internet there is alot of misinformation floating around .....the application it was used in is the important part the casting number is irrelevant
if you can't find them Pm me, i 'll dig them out for you and fax them to you.
if you can't find them Pm me, i 'll dig them out for you and fax them to you.
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Burning Brakes
Joined: Oct 2004
Posts: 904
Likes: 0
From: Murphy NC
The 060s and 062s are the exact same. They have standard seats and 3 angle valve jobs on the intake and exhaust. The 906s are identical in all aspects except for the valve seat. It is the the same diameter but is deeper in the head and has on one angle. The intake on the 906s are still 3 angle.
The 906s can get a 3 angle valve job on the exhaust and a bolw bend and flow the same as the other castings. All the ports are 170cc on all the castings. Hope this helps, Justin
