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Head Number
Posted by: corvair500 ()
Date: October 09, 2019 05:58AM

How to find head number with head in car ? Is it on bottom or top ? I have a 64 with what I believe to be a 65 engine and need to prove this before buying a head . I am not ready to pull the head until the new one is in hand . Engine runs good , but I think I have a blown head gasket and it has been driven this way for maybe 50 miles so the head itself could be damaged .

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Re: Head Number
Posted by: Lane66m ()
Date: October 09, 2019 06:16AM

It is on the end of the head. St side at aft end under panel with electrical wire grommet. Coil and panel has to be removed. Left side under forward end. Heater duct panel needs to be removed. No guarantee they will be the same after 56 years. Mine weren't on the 80 hp I took out of the 66 More Door.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: Head Number
Posted by: Timothy Shortle ()
Date: October 09, 2019 08:03AM

You are not sure if it is a 65 engine? What is the engine number? What are your symptoms making you believe you have a blown head gasket?

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Re: Head Number
Posted by: playerpage ()
Date: October 09, 2019 01:58PM

Yeah, checking the engine number would be the simplest thing for now. I mean, a 65 head is going to fit on a 65 engine. The number is lined up with your shroud right near the oil cap spout.

____________________________________________

Eric C. Player, Porterville, CA
Member: CORSA National, Central Coast CORSA, South Coast CORSA, and San Joaquin Valley Corvair Club
THEN: 1965 Monza 110 Canary Yellow
1967 Monza 140 Red
1966 500 110, Black; nicknamed "Shadow"
1965 Monza 110, Camaro Yellow; nicknamed "Silver"
NOW: 1966 Corsa 180 Turbo; nicknamed "Bluvair"

"It would not have helped if I had [taken notes], as he would start a paragraph with, 'It is therefore obvious. . .'
and go on from there to matters which may have been obvious to him and God but to no one else."
-- Robert A. Heinlein, character of Daniel B. Davis, 'The Door Into Summer.'

------

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Re: Head Number
Posted by: Lane66m ()
Date: October 09, 2019 02:28PM

Look and engine flange just ahead of the low oil pressure switch. Clean are off of all oil and dirt. Code will be there. Starts with a T some numbers, then should be an R with another letter, if it is a LM engine. The code will tell date built but not year, engine CI size, transmission type. Deciphering of codes can be do by using Clark's catalog page 1.

If not a R, but a V, then it is an EM engine. Anything else probably replacement block.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp





Edited 1 time(s). Last edit at 10/09/2019 02:31PM by Lane66m.

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Re: Head Number
Posted by: steve c goodman ()
Date: October 09, 2019 03:07PM

Letters run from A to Z. XXX is typically
the replacement case halves but not always.

V something is one of several denoting FC use
but W something also is FC use. Sometimes
just V or W one letter too.

Large amount of early case halves are
Y or Y something. Some only use one letter
but most use two.

Last thing to remember is that many of the
engines have been rebuilt using parts that
are incorrect to match the case half letters
You really need both case and head numbers,
especially if you are buying head gaskets
etc. It can take some searching good luck.

As Al suggests the Clarks catalog has a list
and probably here in FAQs too.

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/V8 Registry

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Re: Head Number
Posted by: corvair500 ()
Date: October 11, 2019 04:43AM

Thanks for the responses ... Block number is TO7I4RH . A friend sold me this engine back in about 1990 . He had removed it from what I remember a 1965 . Maybe the car had been wrecked . I put it in the 1964 and for various reasons left car in garage after verifying it would run . And it did run great . I had thought I would give the car to my son , and never drive it again myself . Well , last year I got the urge to drive it , sent it to paint shop . Spent a great deal of money getting it in shape . Now it has this puff , puff , puff , which may be only an exhaust leak at the manifold , but could be a head gasket . Before trying to get it repaired I wanted to be prepared for the worst case ( a head gasket ) and since it had been driven this way for maybe 50 miles I wanted to have another head , since the head could have been damaged .

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Re: Head Number
Posted by: steve c goodman ()
Date: October 11, 2019 05:22AM

Usually only 50 miles is not enough to
damage anything. Also the top of cyl
will usually burn before damage to head.

I would retorque the heads. Typically
end cylinders are the suspect. Check for
exh leaks first.

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/V8 Registry

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Re: Head Number
Posted by: larry202br ()
Date: October 11, 2019 05:29AM

And do a compression test, it might tell a story.

1961 rampside with a 65 / 67 110 engine, car four speed.
1965 convertible
1966 Custom two door/four door 180 Turbo.

KC0SKX
Olathe, ks
HACOA

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