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need 351c head
#1
Our project has hit a snag before it even gets started.

My dad marked one of the heads as fixable but the machine shop said no way. It is cracked and they won't touch it.

Is it possible to even find a single 351c closed chamber head or do I have to buy a set?

I have been looking though craigslist and can't find anything.

Can I mix heads from other years as long as they are both closed chamber?

Thanks to all for all the kind words about my dad.
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#2
I don't know if it is still there but, the ad is still up.
https://dallas.craigslist.org/ftw/pts/5858012343.html
Where is the crack? Chuck
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#3
Just '70 and '71s had closed chamber heads and should be interchangeable. The only ones that are different are the Boss heads, which came with adjustable rockers and had a casting number of D1ZE-B.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#4
The 70s supposedly had chamber volume of 61.3-64.3cc and the 71s supposedly had chamber volume 64.6-67.6cc. The only way to know for sure is have the heads you want to use CCed. Chuck
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#5
c9zx;285065 Wrote:I don't know if it is still there but, the ad is still up.
https://dallas.craigslist.org/ftw/pts/5858012343.html
Where is the crack? Chuck

It is cracked between 2 of the valves in the center of the head. Thanks for the link I sent him a email to see if he would be willing to ship it.
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#6
http://www.alliedmotorparts.com
ck out this site. i got a pair for my 302. great pricing and super fast delivery. and they pay shipping to and from you. when i found the heads i called to make sure they had them and purchased on line using paypal.. i'd buy from them again..
they are in atl. ga and have there own machine shop there too.
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#7
I have an orphaned 4v cc head (D0AE-N)....looked for a single head on and off for a long time...found one on ebay last year and it turned out to have a crack over an intake port....

The head I have is machined for screw-in studs and has a nearly new set of cast iron guides installed. It's twin suffered when a cheapo PAW (Performance Automotive Warehouse) valve snapped and was shoved sideways into the intake port.

I'd either like to pair this one up or sell it.

Are you looking for a head with screw-in studs?
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#8
c9zx;285073 Wrote:The 70s supposedly had chamber volume of 61.3-64.3cc and the 71s supposedly HAD chamber volume 64.6-67.6cc. The only way to know for sure is have the heads you want to use CCed. Chuck

There's a lot of conflicting information about the combustion chamber sizes. I have one book that says all closed chamber heads are 62.8cc (nominal and except Boss) on one page. The previous page says the '70s are 62.8cc and all '71s are 66.1. My '71 Ford shop manual says 64.6 to 67.6cc for the closed chamber heads.

However, Wolverine measured a set of DOAE-G heads, a few years ago, and came up with 68cc.

The '70 compression ratio is shown as 11.0:1, '71 as 10.7:1. The Boss uses pop-up pistons to get 11.7:1.

So, your recommendation of cc'ing the heads, if you can't get a set with the same casting numbers, is right on.

EDIT:
Even this technical data referred to by 351C.net
( http://351c.net/board/index.php?/forum/1...-302c-etc/ )

says that '70s and '71s have the same size, 62.8cc:

http://raceabilene.com/kelly/hotrod/engine3.html

If anyone besides Wolverine has cc'ed their 4V heads it would be great if you would share the results with us.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
  Reply
#9
basstrix;285119 Wrote:I have an orphaned 4v cc head (D0AE-N)....looked for a single head on and off for a long time...found one on ebay last year and it turned out to have a crack over an intake port....

The head I have is machined for screw-in studs and has a nearly new set of cast iron guides installed. It's twin suffered when a cheapo PAW (Performance Automotive Warehouse) valve snapped and was shoved sideways into the intake port.

I'd either like to pair this one up or sell it.

Are you looking for a head with screw-in studs?

I do not need screw in studs and would sell the good one I have for what ever you think is fair.

If anyone has a pair that they will let go just let me know.
  Reply
#10
Don C;285126 Wrote:
c9zx;285073 Wrote:The 70s supposedly had chamber volume of 61.3-64.3cc and the 71s supposedly HAD chamber volume 64.6-67.6cc. The only way to know for sure is have the heads you want to use CCed. Chuck

There's a lot of conflicting information about the combustion chamber sizes. I have one book that says all closed chamber heads are 62.8cc (nominal and except Boss) on one page. The previous page says the '70s are 62.8cc and all '71s are 66.1. My '71 Ford shop manual says 64.6 to 67.6cc for the closed chamber heads.

However, Wolverine measured a set of DOAE-G heads, a few years ago, and came up with 68cc.

The '70 compression ratio is shown as 11.0:1, '71 as 10.7:1. The Boss uses pop-up pistons to get 11.7:1.

So, your recommendation of cc'ing the heads, if you can't get a set with the same casting numbers, is right on.

EDIT:
Even this technical data referred to by 351C.net
( http://351c.net/board/index.php?/forum/1...-302c-etc/ )

says that '70s and '71s have the same size, 62.8cc:

http://raceabilene.com/kelly/hotrod/engine3.html

If anyone besides Wolverine has cc'ed their 4V heads it would be great if you would share the results with us.

Here is what my shop said about my CC heads:

Customer: Tracy
Cylinder Head: iron Ford 351C D1AE
Intake/ EXH valve sizeConfusedtock 2.19/1.71 Chamber 64.0 CC

1972 H-code Mach1
2010 GT Premium
2015 Hyundai Sonata Sport 2.0T
1995 F150- The "home depot" machine
2012 Harley Davidson Road Glide Ultra
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