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Old 06-20-2014, 06:40 PM   #1
malpais
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Default '37 head markings?

Pulled an old engine out of a barn today - has markings I've not seen on my 59's or 8ba's. What do they indicate?

Thanks,

Gordon
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Old 06-20-2014, 06:46 PM   #2
Walt Dupont--Me.
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Default Re: '37 head markings?

Those no. are the fireing order. There was thread a short time ago that showed that. I think there heads made out of the USA. walt
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Old 06-20-2014, 06:53 PM   #3
TonyM
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Default Re: '37 head markings?

Those heads are probably 77E-6050. That is the firing order and cylinder diagram cast on the head. These cast iron heads replaced the aluminum heads 78-6050.
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Old 06-20-2014, 07:01 PM   #4
51 MERC-CT
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Default Re: '37 head markings?

Quote:
Originally Posted by TonyM View Post
Those heads are probably 77E-6050. That is the firing order and cylinder diagram cast on the head. These cast iron heads replaced the aluminum heads 78-6050.
Or 77B--
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File Type: jpg 77b.jpg (118.2 KB, 30 views)
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Old 06-20-2014, 07:18 PM   #5
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Default Re: '37 head markings?

Yep or 77B. My car was equipped with 77-6050A on the left and 77E-6050 on the right. Apparently a couple of variations of the "77-6050" cast iron heads are out there.
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Old 06-21-2014, 04:42 AM   #6
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Default Re: '37 head markings?

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I believe these are English heads as used on the Ford Pilot. Many were shipped to the US as replacements for the early 21 stud engines.I have a pair of NOS ones on a 37 engine.
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Old 06-21-2014, 10:15 AM   #7
TonyM
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Default Re: '37 head markings?

Information about these heads - 77-6050 - as used on US produced Ford vehicles can be found on page 5-18 of The Early Ford V-8 Club of America's 1937 Book; also see pages 4-36 and 4-37 of the Early Ford V-8 Club of America's 1938-1939 Ford Book; also see page 282 of the V-8 Affair.
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Old 11-26-2014, 05:00 PM   #8
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Default Re: '37 head markings?

I have a few NORS pairs of the 77-6050a heads for the 21 stud engines. The casting dates are 4-16-46 and 4-18-46 so these were cast replacements. I have a set of the 77-6050E heads on my engine right now which are the English Pilot heads.

On the Van Pelt Flathead spec page it mentions that the 77 series Cast Iron heads were a 7.5 : 1 compression. Is there any truth to that? Can anybody verify?

year Model Displacement HP Compression Compression pressure
1937 77 221.0 85 6.12 (alum heads)
7.50 (C.I. heads) 100 lbs

Fryguy

Last edited by fryguy; 11-26-2014 at 05:42 PM.
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Old 11-26-2014, 06:32 PM   #9
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Default Re: '37 head markings?

I have those E's on mine.. Wouldn't be surprised if they are 7.5:1 pulls like a freight train for little motor.
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