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WTB: 140 HP head
Posted by: Solar2161 ()
Date: February 14, 2018 12:34PM

I saw a post recently about a about a 1960 Corvair with no ID #<s on the head. Then I bought this 140HP head off craigslist and it has no ID numbers. Is this a factory replacement head? I also want to buy another 140HP head. How would I know if it is a smog or no smog? I would like to buy one of the same.

needpart



Edited 3 time(s). Last edit at 02/14/2018 05:11PM by MattNall.

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Re: 140 head no ID numbers WTB 140 head
Posted by: Richard ()
Date: February 14, 2018 02:52PM

I recall the thread Solar mentioned. Did that other guy ever find any numbers? I can't remember.

I tried to find a thread from many, many years ago where there was a discussion about late '60 head and the early '60 head with the slots. Couldn't find it, but did find this from 2013.

[corvaircenter.com]

Rod's head has the numbers in the rocker box. 80hp, 8.00:1, single springs.




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Re: 140 head no ID numbers WTB 140 head
Posted by: Solar2161 ()
Date: February 14, 2018 03:31PM

I was going by Clark's catalog, He has 1965-1966 no smog and 1966-1969 as smog. You guys have probably heard this a million times. Why does he have it listed that way? Is he going to to try to sell me a muffler bearing?

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Re: 140 head no ID numbers WTB 140 head
Posted by: RobertC ()
Date: February 14, 2018 03:42PM

Solar2161 Wrote:
-------------------------------------------------------
> I was going by Clark's catalog, He has 1965-1966
> no smog and 1966-1969 as smog. You guys have
> probably heard this a million times. Why does he
> have it listed that way? Is he going to to try to
> sell me a muffler bearing?

1966 Corvairs sold in California had "smog" engines. The Corvairs (engines) sold elsewhere were "not smog".

Clark's has been "in" Corvairs for 40+ years. He and his workers know Corvairs.

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: vairmech ()
Date: February 14, 2018 03:46PM

I would be very cautious about what you want to do with that head. If you look around the intake valve seat it looks like there is corrosion between the seat and the head. With the 80A code I would hazard a guess this is a 66 head and supposedly the best flow characteristics of factory heads.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: Solar2161 ()
Date: February 14, 2018 03:48PM

Maybe i'm looking at this wrong

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: steve c goodman ()
Date: February 14, 2018 03:52PM

Solar2161: what year car/engine are you working on??

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: Solar2161 ()
Date: February 14, 2018 03:53PM

Thanks Ken, Where would I find a head to match this one?

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: Solar2161 ()
Date: February 14, 2018 04:01PM

Well I have a 66 bare case and I have a milling machine, So I figured what the heck. Maybe I can try my hand at making a 3.1. I also have a spare 65 95hp engine
( now tell me how nuts I am)

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: Wagon Master ()
Date: February 14, 2018 04:06PM

Are all the bolt holes in the head that attaches the top shroud 3/8"-16? Or a mix of 1/4"-20 and 3/8"-16? That will help find a proper match.

'29 Ford Model A Tudor
'61 700 Lakewood 110 4 speed
'69 Monza Convert. 140 Auto.
'70 Dodge Challenger R/T 440 4 speed

Been aircooled since 1973
Northwest Ohio

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Re: WTB: 140 HP head
Posted by: Caveman_1960 ()
Date: February 14, 2018 05:41PM

The picture of the 1960 140 cid 80 HP head is the first design with the separate bolt holding the push rod tube retainers in place. This allows the tubes and the o-rings to be serviced without disturbing the head bolt torque. All later versions use the lower head studs to hold the retainers and tubes in place. Changing the o-rings requires a re-torque. Not so at the very beginning. Maybe that is why I am a Caveman and figure the earlier the Corvair the better? - CP

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Re: WTB: 140 HP head
Posted by: Frank DuVal ()
Date: February 14, 2018 06:33PM

2161, you are looking at it wrong, probably due to Clark's not labeling the last picture like the other head chamber pictures next to it.

The last picture is a smog 110 HP head. The 66-69 140 head looks exactly like the 65 -66 head, because the chamber is the same. There is no smog open chamber 140 HP head that anybody here (Corvair Center Forum or Vitual Vairs) has ever seen. Because of that notation in the Clark's catalog, I also thought there was an open chamber 140 HP head that I had never seen here on the east coast.

Ken points out there are differences in 140 HP heads, but not in the look of the chamber. cc-ing heads will tell you if the chambers of two heads are the same size (same working compression ratio), as head gasket surfaces may have been cut, etc over the years, changing the volume of the chamber (this goes for any HP head!).

Frank DuVal

Fredericksburg, VA

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Re: WTB: 140 HP head
Posted by: Richard ()
Date: February 14, 2018 06:50PM

Look at the rest of Clark's page. Get a matched pair of '65 or later heads and then write that head off as lesson learned.

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Re: WTB: 140 HP head
Posted by: American Mel ()
Date: February 14, 2018 07:01PM

Richard,
The original post may have been written in an a confusing way, but he does not have an 80 hp head.
He was referring to a post about an 80hp head with no numbers, as his 140 head does not either!
The question is actually about 140 heads.

.
-----------------------------------------------
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: WTB: 140 HP head
Posted by: REM654DPG ()
Date: February 14, 2018 08:31PM

2161, the top picture shows your head to be a 65 with the open casting between the fins and the valve cover area. The 66 and later heads have a full support casting in that area and are easy to differentiate.

The 80A number so far as I have seen designates a 4 bolt valve cover boss.

Regan Metcalf
Portland, OR

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Re: WTB: 140 HP head
Posted by: American Mel ()
Date: February 14, 2018 10:18PM

REM654DPG Wrote:
-------------------------------------------------------
> 2161, the top picture shows your head to be a 65
> with the open casting between the fins and the
> valve cover area. The 66 and later heads have a
> full support casting in that area and are easy to
> differentiate.
>
> The 80A number so far as I have seen designates a
> 4 bolt valve cover boss.
>
> Regan Metcalf
> Portland, OR

Interesting.
So Regan, any idea what the numbers mean on a 140 head that has 71A cast on each end of it?
OR, how about one that has 75A cast on one end and 75B cast on the other?

.
-----------------------------------------------
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: WTB: 140 HP head
Posted by: Darrin ()
Date: February 15, 2018 04:06AM

I’m pretty sure that the first picture shows a factory repair (welding pattern) right over the place where the number was stamped.

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: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: vairmech ()
Date: February 15, 2018 03:41PM

Solar2161 Wrote:
-------------------------------------------------------
> Thanks Ken, Where would I find a head to match
> this one?
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

I have an NOS and a used 140 hp head with the 80A. Like has been asked do you have a picture of the turkey roaster bolts? Or describe the pattern. The heads with all 3/8-16 bolt holes are 66 and later and the ones with 2 3/8-16 bolt holes and the rest 1/4-20 is a 1965 head.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: Solar2161 ()
Date: February 15, 2018 08:18PM

It has 2- 3/8-16 and the rest are 1/4-20 , So it is a 1965 head. I could never modify an NOS head. Tell me about the used head.The head I have is left side

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Re: WTB: 140 CUBIC INCH head no OUTSIDE ID numbers 80/84 HP
Posted by: RobertC ()
Date: February 15, 2018 10:30PM

Solar2161 Wrote:
-------------------------------------------------------
> The head I have is left side

Heads fit either side.

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