What are these heads worth? - Chevelle Tech

What's it worth? & ebay/online sales discussions

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 20 (permalink) Old Jul 8th, 10, 10:47 AM Thread Starter
Lifetime Premium Member
Roland
 
Join Date: Jun 2007
Location: Westchester County, N.Y,
Posts: 1,480
Send a message via AIM to forever young
What are these heads worth?

I have a matched set of 1973 BB open chambered 113cc heads, 353049. They are oval port bare castings, what would they be worth if I finished them and wanted to sell them. I am not sure whether I want to do the pressure test and re-surface if they are not worth it.
Thanks,
Roland

"some people spend their entire life trying to make a difference, US MARINES don't have that problem". Ronald Reagan Semper Fi
forever young is offline  
Sponsored Links
Advertisement
 
post #2 of 20 (permalink) Old Jul 9th, 10, 2:17 AM
Senior Tech Team
 
Join Date: Mar 2001
Location: Paso Robles, CA
Posts: 6,816
Re: What are these heads worth?

A pressure test and surfacing is probably not even needed. Unless they have been hot.

I have a pair of 049 bare cores for $250. That should give you an idea.
Ironically I was just at the machine shop today and mentioned them to the owner and asked what they are worth, in his opinion, and when I said $250? he said "minimum".
You might get $150 each to the right guy.
They are 1973 ONLY and purportedly the best flowing oval port cast iron head GM made. 781 is right there with them.

I rebuilt cyl heads for 8 years and all this pressre testing BS is just that. BS. I don't think I pressure tested 1 in 1000 cast iron heads. It's just not a common practice. On the rare occasion you suspect a problem and you can't figure it out or find it with the naked eye, then maybe a pressure test is necessary. But I can tell you that a true pressure test where all of the ports are sealed off and regulated air is applied to the water jacket is a very time consuming procedure.

Disassemble, hot tank and magnaflux and go from there. If there are signs of overheating or hot cylinders, then look for cracks in those cylinders. But as far as pressure testing. Prob not needed 99.9% of the time.
I am so good at spotting cracks in heads that I can find them with the naked eye. That doesn't mean that I don't magnaflux them, but often times I'll find a crack and determine a head to be junk before even wasting any time getting out the mag and powder.

Here's a tip for the poormans crack check. Degrease the head and wash it down with water. Blow it about 3/4 dry and then look for water leaching out from a crack. Often times I found cracks while blowing the head dry while still in the Jet washer rack.
In the machine shop business, time is money. Once a crack is spotted, spend no more time on that head. Put it to the side and move on to the next job.
Mr69 is offline  
post #3 of 20 (permalink) Old Jul 9th, 10, 2:57 AM
Lifetime Premium Member
Todd
 
Join Date: Jun 2009
Location: Mooresville,IN
Posts: 4,548
Re: What are these heads worth?

I don't know about the 73 only etc so I am not disputing that.

But I do know 781 heads can be found pretty easy for $100-$150 per set bare. Last set I bought I paid $75 for the pair. They had valves but no springs,retainers, etc


JMO
Tod74 is offline  
post #4 of 20 (permalink) Old Jul 9th, 10, 9:27 AM
Lifetime Premium Member
Kurt
 
Join Date: May 2008
Location: Janesville WI
Posts: 1,263
Re: What are these heads worth?

Usually a complete set of 781/049 heads in my area sell for about $150. That's without them being checked. Most of the time BB heads are rock solid and don't crack.

If I do have them checked I have them pressure tested. The main reason is because this is how my local machine shop inspects them.

Kurt

1969 Chevelle SS396 300 Deluxe Post Sedan Bench Seat 4-speed
Lemans Blue w/Medium Blue Ransom Cloth Interior
CE 402 M22W 4.56:1 12 bolt
12.15@115

Delivered to Van-T in Topeka, Kansas

A foreign car bought is an American job lost!

TC# 5139
ACES#09593

MCACN Show 2010 http://i300.photobucket.com/albums/n...1010106-11.jpg

Street Trim http://i300.photobucket.com/albums/n...e/100_2256.jpg
69 Post Sedan is offline  
post #5 of 20 (permalink) Old Jul 9th, 10, 12:46 PM Thread Starter
Lifetime Premium Member
Roland
 
Join Date: Jun 2007
Location: Westchester County, N.Y,
Posts: 1,480
Send a message via AIM to forever young
Re: What are these heads worth?

Interesting commentary, I had a set of heads checked recently at the machine shop and under 7 lbs. pressure some leaching or leakage was noted on 3 valve castings behind the valve / seat. This is what I thought was a standard practice with heads, the pressure test. It costs about $60.00 a head, so that's why I inquired about what these heads may be worth.

Thanks

"some people spend their entire life trying to make a difference, US MARINES don't have that problem". Ronald Reagan Semper Fi
forever young is offline  
post #6 of 20 (permalink) Old Jul 9th, 10, 12:50 PM
Lifetime Premium Member
& Moderator
 
Join Date: Apr 2005
Location: North America
Posts: 15,617
Re: What are these heads worth?

Quote:
Originally Posted by Mr69 View Post
They are 1973 ONLY and purportedly the best flowing oval port cast iron head GM made.
About that
Quote:
1973 ONLY
very late BBC 049 head casting date

Look's like they were around until '84 - recheck the casting date.
Mike is offline  
post #7 of 20 (permalink) Old Jul 10th, 10, 5:51 AM
Senior Tech Team
 
Join Date: Mar 2001
Location: Paso Robles, CA
Posts: 6,816
Re: What are these heads worth?

Quote:
Originally Posted by Mike View Post
About that
very late BBC 049 head casting date

Look's like they were around until '84 - recheck the casting date.
casting 353049 is 1973 only on pass vehicles and trucks.

The 454 head that came after the 353049 was the 336781 in 1974.

I suppose it is possible to find a 353049 dated after 1973 sold over the counter, but you won't find one as original equipment on any 1974-up pass vehicle.
Maybe on a motorhome???
Here's a pair dated 1978. Have to be over the counter or something other than pass car or truck. This guy says Chevelle Camaro Nova Corvette, but not on any of those in 1978.
http://cgi.ebay.com/ebaymotors/BBC-C...item23086dabb3


I should also point out that what you guys are leaving out of the equation is the machine shop costs to disassemble, hot tank and magnaflux.
Maybe the going rate for a pair of 353049 heads is $200, but that's filthy dirty and no guarantee they are not cracked.
What do you think it costs to have the machine shop check them out. Do you think it's free? Wrong. Try $40-50


I never had a problem selling guaranteed good SB head cores for $75 each min and $125 each for any BB head.

I had one guy that insisted he could find his own pair of 350 heads at the wrecking yard. It took him 6 trips and 6 pairs of heads before he found a good pair. The first 5 pairs he brought me were cracked.
Then the $75 each sounded pretty darn good

Last edited by Mr69; Jul 10th, 10 at 6:14 AM.
Mr69 is offline  
post #8 of 20 (permalink) Old Jul 10th, 10, 7:41 AM
Senior Tech Team
Michael
 
Join Date: Feb 2007
Location: Escondido, California
Posts: 7,618
Send a message via AIM to MEJ1990TM
Re: What are these heads worth?

If I remember right it did cost about $40 to have my heads jet washed and magged. That was back when I was trying to nail down this smoking issue.

1966 Charger (383, 727 Torqueflight)
1970 SS 454 Chevelle (LS5+2, M22, 3.31 12 bolt)
1971 Malibu (350, M22, 3.31 12 Bolt)

I'm looking for a girl with a car, and a house..........with cable.

http://s160.photobucket.com/albums/t164/MEJ1990TM
MEJ1990TM is offline  
post #9 of 20 (permalink) Old Jul 10th, 10, 11:22 AM
Lifetime Premium Member
Doc. Smokum
 
Join Date: Jan 2004
Location: Arlington,Washington State
Posts: 5,636
Re: What are these heads worth?

$100 a pair all day long, nomore than $150, but make sure you make some kind of deal on if they are cracked when magged.

If they have any false seats in the exhaust, worth less, as you don't know how the quality of the machine work was. I preffer virgin castings and try to refrain from buying any that have been rebuilt already.

I've had the 049's off engines up into the 81-82 year range. Mostly 781's in the later 70's and that 81-82 range but they did make then for many years.

1968 Chevelle Sb
1969 Chevelle 496
1973 SS 454 Chevelle
1974 S-3 454 Chevelle
1955 Delray LS1
1967 Nova 496
1969 nova 427
1969 Camaro 350
1968 Camaro Convertable 350
1968 Camaro Coupe 427
.
http://tcnwracing.com/
FRYNTYR is offline  
post #10 of 20 (permalink) Old Jul 10th, 10, 3:01 PM
Senior Tech Team
 
Join Date: Mar 2001
Location: Paso Robles, CA
Posts: 6,816
Re: What are these heads worth?

Quote:
Originally Posted by FRYNTYR View Post
$100 a pair all day long, nomore than $150, but make sure you make some kind of deal on if they are cracked when magged.

If they have any false seats in the exhaust, worth less, as you don't know how the quality of the machine work was. I preffer virgin castings and try to refrain from buying any that have been rebuilt already.

I've had the 049's off engines up into the 81-82 year range. Mostly 781's in the later 70's and that 81-82 range but they did make then for many years.
no more than $150???? are you on crack?

Yeah most guys that are putting in the hard seats are doing it in their back yards with a sledge hammer pry bar and plasma cutter. wtf are you on crack?
worth less??? are you stupid?

NO 353049 in pass vehicles after 1973 period.
If you think so then prove it.
Mr69 is offline  
post #11 of 20 (permalink) Old Jul 10th, 10, 6:10 PM
Lifetime Premium Member
Todd
 
Join Date: Jun 2009
Location: Mooresville,IN
Posts: 4,548
Re: What are these heads worth?

Quote:
Originally Posted by Mr69 View Post
no more than $150???? are you on crack?

Yeah most guys that are putting in the hard seats are doing it in their back yards with a sledge hammer pry bar and plasma cutter. wtf are you on crack?
worth less??? are you stupid?

NO 353049 in pass vehicles after 1973 period.
If you think so then prove it.



Don't know about 049 but 781 heads are easy to find and cheap.

Why would someone pay $150 each for a core big block head?(as you stated in another post...)That,in my opinion, would be stupid.You start out at $300 bucks for a set of castings with small valves. By the time you buy new valves and have the larger valves installed properly you very quickly get up in the price range of some aftermarket heads. JMO





But at any rate, anyone in the market for some stock heads, think of this.If those heads are worth $250 -$300 for the pair complete. A better option might be to look for a complete 454 from a truck.They are pretty easy to find complete in the $400-$450 range around here.. Most all of them are going to have 781 heads and if they are late 70's they will have hard exhaust seats already. Buy the motor keep the heads and sell the shortblock. You end up with a dirt cheap set of good heads.Plus the chances of getting a set of unmolested heads is better when buying a complete running engine.

Last edited by Tod74; Jul 10th, 10 at 7:14 PM.
Tod74 is offline  
post #12 of 20 (permalink) Old Jul 10th, 10, 9:50 PM Thread Starter
Lifetime Premium Member
Roland
 
Join Date: Jun 2007
Location: Westchester County, N.Y,
Posts: 1,480
Send a message via AIM to forever young
Re: What are these heads worth?

Hey guys, take a step back a minute. Why I am asking your opinions is because for me to pressure test the heads, that's $60 each = $120 to start, The hot tank is nothing. If I build these, as with nmy 781's I will replace any questionable guides, install swirl undercut valves, 300# springs and the budget spring retainers and locks. If they have to be cut that's an added expense. I am i NY and we pay thru the wazoo for most everything because of taxes. SO...... I have to figure I will put in $300 - $400 and am asking what a finished completely rebuilt new heads are worth. I am not sure if these would make $500 - $600 completely rebuilt. Any comments?
thanks,
Roland

"some people spend their entire life trying to make a difference, US MARINES don't have that problem". Ronald Reagan Semper Fi
forever young is offline  
post #13 of 20 (permalink) Old Jul 10th, 10, 11:06 PM
Lifetime Premium Member
Todd
 
Join Date: Jun 2009
Location: Mooresville,IN
Posts: 4,548
Re: What are these heads worth?

Quote:
Originally Posted by forever young View Post
Hey guys, take a step back a minute. Why I am asking your opinions is because for me to pressure test the heads, that's $60 each = $120 to start, The hot tank is nothing. If I build these, as with nmy 781's I will replace any questionable guides, install swirl undercut valves, 300# springs and the budget spring retainers and locks. If they have to be cut that's an added expense. I am i NY and we pay thru the wazoo for most everything because of taxes. SO...... I have to figure I will put in $300 - $400 and am asking what a finished completely rebuilt new heads are worth. I am not sure if these would make $500 - $600 completely rebuilt. Any comments?
thanks,
Roland
If you are asking if they will be worth $500-$600 when finished then I say yes.

If they had 2.19 valves in them I'd pay $500-$600 for them in a minute if I trusted the shop doing the work. I can't get a set built for that....It would cost Closer to a grand (counting initial purchase price) if you have them opened up for the bigger valves .
Tod74 is offline  
post #14 of 20 (permalink) Old Jul 10th, 10, 11:30 PM
Tech Team
 
Join Date: Dec 2006
Location: Out There
Posts: 190
Re: What are these heads worth?

Whats the stock valve size on a 049 head? How much HP will they support realistically?
12Flat is offline  
post #15 of 20 (permalink) Old Jul 11th, 10, 1:04 AM
Lifetime Premium Member
Todd
 
Join Date: Jun 2009
Location: Mooresville,IN
Posts: 4,548
Re: What are these heads worth?

Quote:
Originally Posted by 12Flat View Post
Whats the stock valve size on a 049 head? How much HP will they support realistically?

I assume they would have 2.06/1.72 valves stock. that's what the 781's have.
Tod74 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome