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Old 07-27-2011, 04:58 PM   #1
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casting numbers on heads

So does anyone know where the casting numbers are in heads.are they different locations on factory and aftermarket heads?I can't seam to find anything except on 1 there is what look like an S .the other one it looks like a 9.these are in the front outside corners.my best views is that they are under the valve covers.if anyone knows I would appreciate.I attached a pic of the S on the passenger side head
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Old 07-27-2011, 05:00 PM   #2
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I meant to say" my best guess"
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Old 07-27-2011, 06:30 PM   #3
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Re: casting numbers on heads

Some are under the valve cover. the E7's are here - Casting Number
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Old 07-27-2011, 06:52 PM   #4
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Thanx Trojan.as always a great response
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Old 07-27-2011, 08:24 PM   #5
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Re: casting numbers on heads

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Thanx Trojan.as always a great response
You are welcome. Glad I could help.
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Old 08-03-2011, 04:23 PM   #6
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So I pulled the valve cover and can see the numbers but can't 100% make them out.tried every combo that they looked like and could not come up with any result in Google.
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Old 08-03-2011, 04:31 PM   #7
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There is also this mark if anyone recognizes it.
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Old 08-03-2011, 05:25 PM   #8
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Re: casting numbers on heads

Thats not the number you are looking for.
It must be on the bottom of the head like in the link I provided above.
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Old 08-03-2011, 05:33 PM   #9
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Quote:
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Thats not the number you are looking for.
It must be on the bottom of the head like in the link I provided above.
w
I looked everywhere under the bottom with a mirror and light and I couldn't find anything.some spots were hard to see cause I have 1-5/8 headers but I scanned the bottom pretty good
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Old 08-03-2011, 05:59 PM   #10
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Re: casting numbers on heads

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w
I looked everywhere under the bottom with a mirror and light and I couldn't find anything.some spots were hard to see cause I have 1-5/8 headers but I scanned the bottom pretty good
It looks like the number is on the intake side of the head.
Clues are that the area looks like oil soaked cast iron and those appear to be pushrod holes that the number is located between.
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Old 08-03-2011, 06:08 PM   #11
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It looks like the number is on the intake side of the head.
Clues are that the area looks like oil soaked cast iron and those appear to be pushrod holes that the number is located between.
I have a carved offenhauser intake.It seems that my intake might cover more of the head than the stock intake.

---------- Post added at 06:08 PM ---------- Previous post was at 06:07 PM ----------

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I have a carved offenhauser intake.It seems that my intake might cover more of the head than the stock intake.
I meant carbed .stupid auto spell lol.
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Old 08-03-2011, 06:32 PM   #12
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Re: casting numbers on heads

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I have a carved offenhauser intake.It seems that my intake might cover more of the head than the stock intake.
I meant carbed .stupid auto spell lol.
You would have to remove the intake to access the area where the number is located.
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Old 08-03-2011, 06:42 PM   #13
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You would have to remove the intake to access the area where the number is located.
another failed investigation!i guees the only way to figure out more about my motor is to go find a camaro.thanx for your help trojan.
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Old 08-03-2011, 06:44 PM   #14
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Re: casting numbers on heads

You're welcome!
If I run across any other way to identify them, I'll let you know.
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Old 08-03-2011, 06:50 PM   #15
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You're welcome!
If I run across any other way to identify them, I'll let you know.
i thought that the last pic i posted may have been a mark( CP) on the e7 but wasnt sure.i was hoping that someone had seen it before.
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Old 08-03-2011, 07:10 PM   #16
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Re: casting numbers on heads

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i thought that the last pic i posted may have been a mark( CP) on the e7 but wasnt sure.i was hoping that someone had seen it before.
Most marks like those have to do with date/time of manufacture, location, mold numbers, etc. etc.. Unless they just happen to be specific to only one certain type of head they are of no use in identifying them.
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Old 08-28-2011, 06:15 PM   #17
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I went to change the spark plugs today and they didn't fit.I double checked the plug #s and they are for my car.the threads on my heads seem like are are really deep in there.the plugs that came out of there are about 1/2" longer.
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Old 08-28-2011, 08:44 PM   #18
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Re: casting numbers on heads

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I went to change the spark plugs today and they didn't fit.I double checked the plug #s and they are for my car.the threads on my heads seem like are are really deep in there.the plugs that came out of there are about 1/2" longer.
Picture of the two Plugs?
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Old 08-28-2011, 09:01 PM   #19
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Picture of the two Plugs?
i already took the plugs back.it was the first time i had them out and they looked great so i just decided to leave them for now.
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Old 08-28-2011, 10:02 PM   #20
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Re: casting numbers on heads

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i already took the plugs back.it was the first time i had them out and they looked great so i just decided to leave them for now.
I was hoping to maybe use the plugs to help identify what heads you have. That would have given me a comparison. Oh well.
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Old 08-29-2011, 12:02 AM   #21
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I was hoping to maybe use the plugs to help identify what heads you have. That would have given me a comparison. Oh well.
The factory plugs have #4009.I can pull one out tomorow and still look at it.
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Old 08-29-2011, 04:12 PM   #22
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i went to autozone today and told them let me see a plug from a 95 cobra.that has gt40 heads i believe.the plugs are identical to the ones in my heads.
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Old 08-29-2011, 08:21 PM   #23
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It makes sense because I think the gt40 heads moved the plug location more towards the center of the combustion chamber. Or am I thinking about the p heads?
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Old 08-29-2011, 08:29 PM   #24
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It makes sense because I think the gt40 heads moved the plug location more towards the center of the combustion chamber. Or am I thinking about the p heads?
That was my first thought.I found out I have a b cam.now I think gt40s.I have an offenhauser intake with a 550 cfm Holley.is my carb starving the engine?it seems a bit small but not sure.

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That was my first thought.I found out I have a b cam.now I think gt40s.I have an offenhauser intake with a 550 cfm Holley.is my carb starving the engine?it seems a bit small but not sure.
It seems like it runs great but I haven't done enough driving to get into higher rpms
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