What heads do I have?

[Trizney]

I bought these 98 Vortec heads from a guy on ebay. The casting number inside is 12556140. I did a search for that, and didn't come up with anything. Did a serach for Vortec AND cast, read through those, didn't find anything.

Also, these bastards are heavy. On the UPS box, said 65 pounds for everything (heads, push rods, springs, valves, rocker arms, and the Vortec valve covers). Should a pair weigh this much fully assembled?

I did find this website that says they are Vortec heads
http://www.stevensparts.com/RECONDITIONED CYLINDER HEADS.htm

I read that the 772 heads flow pretty good. Is the 772 suppose to be the last 3 digits in the cast number, or is that somewhere else?

Thanks in advance.

 

[dgoodhue]

I can't comment on the casting numbers, but that sounds about right. a pair Chevy aluminum heads weigh about 44lbs. Iron SBC heads weight about twice as much.

 

[ItsMyTy]

yeah those are vortecs
casting numbers don't really matter as long as they are vortecs

they are cast iron so they're gonna be heavy

 

[TurboTony]

That is a valid casting number for vortecs. They flow the same as the 772's.

That is also about the correct weight.

Tony

 

[Slow-Clone]

Re: What heads do I have?

Is the 772 suppose to be the last 3 digits in the cast number

Yes