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Old 06-24-2012, 04:29 PM   #1
46Ford4dr
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Default Bad news for a straight 6. Need a new head...

Well guys, bad news. When I started taking apart the motor (G series straight 6) the other day, I discovered a broken stud stuck in the head that the thermostat housing bolted to. Apparently when the previous owner had it, they snapped it and just set the housing back on and used the other two bolts to hold it. So I drilled the stud, and started using a Matco extractor... and the extractor snapped off. I had a friend who owns a machine shop look at it, and basically said that he can't help me because the material that the extractor is made of is the same material that the tools he would use to get it out are made of.

So, now I either need to find a new head, or get a new motor. OR I can purchase two 59A flatheads and convert the car to that.

Anyone have a head? Or should I just get the two flatheads and convert it?..
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Old 06-24-2012, 04:46 PM   #2
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Default Re: Bad news for a straight 6. Need a new head...

That ain't no "big trick" for any REAL machine shop. DD
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Old 06-24-2012, 04:50 PM   #3
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Default Re: Bad news for a straight 6. Need a new head...

I agree that the right guy can do it. But will the cost of paying someone to do it outweigh the cost of finding a different head?...
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Old 06-24-2012, 04:51 PM   #4
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Default Re: Bad news for a straight 6. Need a new head...

Joblot has some nos G sereis 6 cyl heads part # 1GA-6050 for $125
I would stay with the 6. There is a bunch of stuff you have to change to go to a V8 and you will not notice any difference in power.
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Old 06-24-2012, 04:51 PM   #5
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Default Re: Bad news for a straight 6. Need a new head...

46 check this thread in the "Late V8" Forum
https://www.fordbarn.com/forum/showthread.php?t=73567 Might help...
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Old 06-24-2012, 04:52 PM   #6
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Default Re: Bad news for a straight 6. Need a new head...

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I should also mention that the bolt and the extractor are flush with the head. How are they supposed to drill that? It's a hardened extractor...
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Old 06-24-2012, 05:02 PM   #7
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Default Re: Bad news for a straight 6. Need a new head...

Y Block. I don't have an ocy/act set up. But I read that thread, very good info. Just seems like taking it to a machine shop will cost as much or more than a new head... the two 59A flatheads I can pick up for $100 are so calling my name right now. This is a big dilemma for me... get the look and sound of the V8, or spend some cash on getting the head fixed... decisions decisions. I should also mention that whoever had this before, also cracked a stud off in the block. I thought the bolt they stuck in the hole was for a bracket, because it wasnt a stud/nut. Until i took it off and realized nope, not a bolt for a bracketm its because someone snapped off a stud in the block. So I have some thinking and looking to do...
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Old 06-24-2012, 05:10 PM   #8
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Default Re: Bad news for a straight 6. Need a new head...

By the way guys, I REALLY appreciate all of your help and your quick replies. It really helps me out.
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Old 06-24-2012, 07:18 PM   #9
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Default Re: Bad news for a straight 6. Need a new head...

http://www.machinistvideos.com/395/b...the-right-way/

http://weldingweb.com/showthread.php...ht=broken+bolt

I've done lots.

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Old 06-24-2012, 07:30 PM   #10
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Default Re: Bad news for a straight 6. Need a new head...

Ronnie, I just checked out the links. The second one says to use a tig? Am I reading that right? I don't have a tig. I'll have to check out the vid in a bit. I assume these suggestions will work with a hardened extractor also stuck in it?...

And I should admit, I probably (I know I did) jumped the gun with the title "Need a new head". I've extracted bolts like how the link suggests before, but never with a hardened extractor in there. The hole is only 1/4in. So there's not much to weld to. The extractor that snapped was a 5/16in. So I don't know if welding something to it will actually work.
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Old 06-24-2012, 07:47 PM   #11
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Default Re: Bad news for a straight 6. Need a new head...

Yup give it a go

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Old 06-24-2012, 08:11 PM   #12
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Default Re: Bad news for a straight 6. Need a new head...

bring it to a good muffler shop they can blow it out with a tourch the extera is steel the head is cast iron i have done it maney times
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Old 06-24-2012, 08:44 PM   #13
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Default Re: Bad news for a straight 6. Need a new head...

I have cut a tap out with a plasma cutter.
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Old 06-24-2012, 09:50 PM   #14
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Default Re: Bad news for a straight 6. Need a new head...

Althought the pic on my phone is small, is that what you're doing in your profile picture?
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Old 06-24-2012, 09:53 PM   #15
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Default Re: Bad news for a straight 6. Need a new head...

Frank, that's a bit of a pricey tool for me. I have access to one, but not right now. Richard, that's actually a pretty food idea. I'm going to take everyones ideas and figure out which is the most cost effective for me tomorrow. I brought he head home with me because the car is at a friends house, but it has to stay in my truck because I don't think the wife would appreciate it on the dining room table... but I think it would make a good center piece. So, I hope to have this problem solved by end of day tomorow.
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Old 06-25-2012, 08:22 AM   #16
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Default Re: Bad news for a straight 6. Need a new head...

If the "extracter" is stuck in a broke off stud stuck in the head what about drilling from the other side to the extracter then pushing it out with a punch

I have used carbide burrs, and the cheap diamond plated ones in a dremel to remove taps etc

Tig welding a washer to a broke off stud in the block works good, weld the washer to the stud remains, then weld a sacrifical nut to the washer ---the few that didn't work the first time came out on the second try for me. ---it can be done with a mig welder but it doesn't work as good
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Old 06-25-2012, 08:35 AM   #17
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Default Re: Bad news for a straight 6. Need a new head...

Kurt, drilling from the other side wouldn't be a good idea. I'd have to drill through the head itself to get to it. Since its the thermostat housing bolt/stud, it does not go through to the other side. I have a friend who has a tig welder at work, and he might be able to do it for me. I'm going to give yours/ronnies idea a shot. I know it would work, i just dont have a tig.

I also found a friend whose father is the foreman at a machine shop. They do EDM there, and if hes willing to cut me a good deal, I'll just have him do it and have the head cleaned out while he's at it. Kind of a one stop shop, done and done. We shall see. i expect to hear from him later today.
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Old 06-25-2012, 08:41 AM   #18
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Default Re: Bad news for a straight 6. Need a new head...

As ken/alabama says if joblot has a new head for only 4125 I would go that route. On the flatheads, buy as either an investment or flip them. JMO
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Old 06-25-2012, 08:47 AM   #19
46Ford4dr
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Default Re: Bad news for a straight 6. Need a new head...

1931, I was kind of thinking the same thing. It depends what my friend father at the machine shop says today. If its going to cost me like $60 for extract/clean, i'm just going to get a new head.
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Old 06-25-2012, 09:36 AM   #20
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Default Re: Bad news for a straight 6. Need a new head...

don,t forget to figure in the shipping cost shipping today ain,t cheap
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