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What is up with this head?
Posted by: American Mel ()
Date: January 29, 2018 03:26PM

Found this strange weld on a head today.
I felt around inside the intake and it does not seem to be abnormal inside.
Why was this weld done?
Would the factory have done this to fill a casting void?

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: What is up with this head?
Posted by: corventure Dave ()
Date: January 29, 2018 03:30PM

Over the years I have seen a few casting flaws repaired by Chevrolet and sent into production. crankcases and heads.... not too uncommon.

Corventure Dave

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Re: What is up with this head?
Posted by: MattNall ()
Date: January 29, 2018 03:30PM

Factory repair most likely. They did it all the time...





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: What is up with this head?
Posted by: American Mel ()
Date: January 29, 2018 03:50PM

Great!
Thanks guys!

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: What is up with this head?
Posted by: Darrin ()
Date: January 29, 2018 04:08PM

Most of the NOS heads I’ve seen over the last 30 years have this sort of repair. I think that they were pulled off the line for repair and then automatically went into the parts bin and were sold via dealership parts departments.

All of them worked just fine.

Darrin Hartzler
Bethesda, MD

Corvairs in two states of the Union and varying states of disarray.

Northern Virginia Corvairs & Group Corvair

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Re: What is up with this head?
Posted by: REM654DPG ()
Date: January 29, 2018 04:54PM

Mel that head is junk. You should send it to me so I can cut that damaged manifold log off and fix it for good. Oh, and send the other one too just in case - LOL

Just kidding, what everyone is saying is true it's a common factory repair.

Regan

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Re: What is up with this head?
Posted by: American Mel ()
Date: January 29, 2018 05:20PM

No problem Regan, just as soon as you send me a pair of those world famous 140 heads you are so well known for! thumbs upthumbs up
In fact, I would gladly send you 4, 140 heads in exchange for only 2 of your's.

.
-----------------------------------------------
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: What is up with this head?
Posted by: 63turbo ()
Date: January 29, 2018 06:07PM

At least the repair is obvious and in plain sight! There have been other kinds of casting related flaws that have happened... I got to see one. It had a large
chunk of casting material deep down in the intake manifold and was partly blocking one of the intake ports!. The owner of the head found it only because he heard something rattling around in the head and was able to get it out only by removing the intake valves. Super large chunk of aluminum, and did not look
like it was foreign material that had fallen into the port from the outside.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car



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Re: What is up ?
Posted by: MattNall ()
Date: January 29, 2018 06:28PM

I like the story Walt Davidson told;

At an UltraVan rally.... a new couple in a UV that no one had seen before showed up..

During conversation they stated the had to stop almost every hour to let that "little engine" cool off [ light go out ] Said it was normal!

Walt pulled the carbs and Top shroud and found the worst case of excess flashing he ever saw

After cleaning... light never came on!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: What is up with this head?
Posted by: Timothy Shortle ()
Date: January 29, 2018 06:40PM

I have also seen this type of repair being previously done and just assumed maybe someone had dropped this part and then had it repaired. I never imagined this may have happened AT THE FACTORY.

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Re: What is up with this head?
Posted by: junkman ()
Date: January 29, 2018 06:46PM

The factory would fix cars that got damaged prior to shipping, and replace all damaged sheet metal with new, and then run it through the paint booth again. They were a lot more frugal in the assembly plants than they were in the board room.

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