id'ing heads

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Oct 1, 2009 | 10:29 AM

crescentwrencher

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From: fallbrook ca.

id'ing heads

is there any way of finding out what the ccs of my heads are without pulling them?

Oct 1, 2009 | 01:10 PM

FFR428

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From: CT

There are general cc specs which slightly vary from cyl to cyl and casting to casting. So you can get the aprox cc's if you list the casting number. To be exact you'd really need to cc each chamber. Printed specs are + - 3-4 cc's. Of course if they have been milled that adds to the equation and why it's always good to cc them so you know exactly what your dealing with. I guess the short answer is NO there's no exact specs.

Oct 1, 2009 | 11:32 PM

crescentwrencher

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From: fallbrook ca.

well do ya think you could give me the ball park with these number?

left c4AE 6090G right C4AE and where the other number would usually be, theres just a bunch of raised dots???

also what is the date of the block? 4H15 C5AE A

any info greatly appreciated

Oct 2, 2009 | 06:49 AM

jowilker

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From: Creedmoor, North Carolina

Steve Christ SAYS:

C4AE: 64-65 352/390 71.2-74.2 CCV

C5AE A: 65 390 also 65 427 top oiler, as well as 330HD FT. My understanding block numbers can mean many things.

no listing for C4AE 6090G Most of the 6090s are high performance but not all. Steve usually has the numbers. Do you want to re-check the number again?

John

Oct 2, 2009 | 09:54 AM

crescentwrencher

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From: fallbrook ca.

its definetley 6090G the thing that throws me off is the right side head doesnt have a casting number like this, it just has a bunch of raised dots.

i dated the block a while back but i cant remember exactly what it was. the c5 means 65 but thats the ?design? and the number by the oil filterator was the exact date, if i remember correctly it was either 66 or a 68. it also has mercury pent roof valve covers!

by hi perf, what exactly does that mean?

Oct 2, 2009 | 11:36 AM

jowilker

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From: Creedmoor, North Carolina

Steve has a listing for standard & another for HP heads.

There is a C3AE 6090G but no C4AE

The C3 is listed as late 63 427 low riser 72.8 to 75.8 ccv

One of the heads could have replaced over the years, so the mis-match.

I'm already in over my head, reporting out of Steve's book.

John

Oct 2, 2009 | 01:23 PM

FFR428

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From: CT

There are both C4AE and C4AE-6090-G heads. That's your everyday bread and butter 63-65 FE lowriser head. I would think the C4AE head is close to the same as the C4AE-6090-G head with some small production changes possibly. You'd have to closely compare the 2 and see. Offhand I forget the exact differences but it's nothing extreme.

4H15 is a 64/Aug/15th date code.

John's right on the cc, head and block info.