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Old 06-06-2009, 11:35 PM   #1 (permalink)
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351c. D2ae -ca 2v

Ive got a 351 C. casting #rs d2ae-ca(cobra jet) with 2v heads !!??
since it has 2v heads with that casting # WHAT THE HECK 351C. MOTOR IS THIS!!!!!!!????
I dont know what car it came out of ,and I have no engine history on it

Last edited by super-fairlane; 06-06-2009 at 11:49 PM.
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Old 06-07-2009, 08:23 PM   #2 (permalink)
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Re: 351c. D2ae -ca 2v

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Originally Posted by super-fairlane View Post
Ive got a 351 C. casting #rs d2ae-ca(cobra jet) with 2v heads !!??
since it has 2v heads with that casting # WHAT THE HECK 351C. MOTOR IS THIS!!!!!!!????
I dont know what car it came out of ,and I have no engine history on it
What is the casting # on the heads?
JIM
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Old 06-07-2009, 10:37 PM   #3 (permalink)
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Re: 351c. D2ae -ca 2v

I just did the valve cover gaskets the other day and found these casting #rs

drivers side 2M1
pass. side 0L19

And both heads have a round style casting #, starting at 12 oclock going clock wise the #rs are 13579 ( both heads have this casting#).
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Old 06-08-2009, 09:57 AM   #4 (permalink)
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Re: 351c. D2ae -ca 2v

Those are casting date codes, not the cylinder head codes.

2M1 - December 1, 1972
0L19 - November 19, 1970

D2AE-CA is the block, no that casting number does not indicate a CJ block. That number was used on both 2 bolt and 4 bolt blocks for several years. Based on the casting dates, you just have a mis-mash motor with parts from several years. The casting number for the heads is under the intake ports, part on both middle ports.
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Last edited by ckelly; 06-08-2009 at 10:07 AM.
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Old 06-08-2009, 02:05 PM   #5 (permalink)
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Thumbs up Re: 351c. D2ae -ca 2v

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Originally Posted by ckelly View Post
Those are casting date codes, not the cylinder head codes.

2M1 - December 1, 1972
0L19 - November 19, 1970

D2AE-CA is the block, no that casting number does not indicate a CJ block. That number was used on both 2 bolt and 4 bolt blocks for several years. Based on the casting dates, you just have a mis-mash motor with parts from several years. The casting number for the heads is under the intake ports, part on both middle ports.
D1ZZ-A and D2AE-CA are 71-73 CJ, 71Boss 72 HO and 72 -74 4V, 4 Bolt Mains. Your Heads Should be DOAE-H DOAE-R 70-71 closed chamber heads or { D1ZE-B 71 Boss has guide plates and adj rocker arms}. you could have picked up ole stock car motor. We used to put 2 v heads on some of the stock cars in the 70's we ran. Hope this helps JIM
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Old 06-08-2009, 09:02 PM   #6 (permalink)
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Re: 351c. D2ae -ca 2v

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Originally Posted by jim429ci View Post
D1ZZ-A and D2AE-CA are 71-73 CJ, 71Boss 72 HO and 72 -74 4V, 4 Bolt Mains. Your Heads Should be DOAE-H DOAE-R 70-71 closed chamber heads or { D1ZE-B 71 Boss has guide plates and adj rocker arms}. you could have picked up ole stock car motor. We used to put 2 v heads on some of the stock cars in the 70's we ran. Hope this helps JIM
I have two D2AE blocks, both are 2 bolt. There is no guarrantee that the D2AE-CA is a 4 bolt block, in fact most in use are not. The number was used through 1974 as far as we can tell. That is also the replacement casting number, sold over the counter IIRC. It's just a block. If it had 4 bolt mains and the proper date code, then maybe it's a CJ. Don't think many 1971 Bosses would get a 1972 casting number block, maybe very late production.
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Old 06-08-2009, 09:59 PM   #7 (permalink)
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Re: 351c. D2ae -ca 2v

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I have two D2AE blocks, both are 2 bolt. There is no guarrantee that the D2AE-CA is a 4 bolt block, in fact most in use are not. The number was used through 1974 as far as we can tell. That is also the replacement casting number, sold over the counter IIRC. It's just a block. If it had 4 bolt mains and the proper date code, then maybe it's a CJ. Don't think many 1971 Bosses would get a 1972 casting number block, maybe very late production.
Thers something I forgot to mention right under the casting #rs D2AE-CA Is the casting 2M2.

Example
D2AE-CA
2M2
What does this mean?
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Old 06-08-2009, 10:32 PM   #8 (permalink)
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Re: 351c. D2ae -ca 2v

Did they make any 351C. 2V closed chambers in the U.S..My heads have the #2 on the two top corners of both heads.

The reason I ask that is becouse my motor does something strange.When It gets good and warmed up and I shut it off it does not like to start right back up, It cranks hard or does not crank at all until I let it cool down for about 10 minutes. So I replaced the sylinoud and starter with good napa parts("made in the USA").The electricle harness is new.I checked and cleaned all the wire connections inclueding all the grounds that are involved with the starting system. And it still does the same thing? Do you think this could be caused from high compression? Ive herd the boss 302s with closed chambers had the same carictoristics.what do you guys think???
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Old 06-09-2009, 09:05 AM   #9 (permalink)
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Re: 351c. D2ae -ca 2v

2M2 - December 2, 1972 casting date.

No - no US closed chamber 2V heads. All are open. The only closed chamber "2V" type heads are Australian 302C heads. The "2" was used on 351C engines as far as we can tell and no number was used on 351M and 400 heads of the same type. Any they may have dropped the 2 on later model heads. They are all the same until about 1975, when the exhaust port got very restricted by a water passage.

I would suggest trying to upgrade to a PMGR starter as the old fat Ford types don't work very well and typically have those problems. Rebuilds especially, even if you pay extra at NAPA. I use those on all the performance engines here and have zero cranking issues, even with 38 degrees locked timing in 100F weather. The drag cars get cranked a lot in the staging lanes.
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Last edited by ckelly; 06-09-2009 at 09:19 AM.
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Old 06-09-2009, 11:42 AM   #10 (permalink)
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Re: 351c. D2ae -ca 2v

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2M2 - December 2, 1972 casting date.

No - no US closed chamber 2V heads. All are open. The only closed chamber "2V" type heads are Australian 302C heads. The "2" was used on 351C engines as far as we can tell and no number was used on 351M and 400 heads of the same type. Any they may have dropped the 2 on later model heads. They are all the same until about 1975, when the exhaust port got very restricted by a water passage.

I would suggest trying to upgrade to a PMGR starter as the old fat Ford types don't work very well and typically have those problems. Rebuilds especially, even if you pay extra at NAPA. I use those on all the performance engines here and have zero cranking issues, even with 38 degrees locked timing in 100F weather. The drag cars get cranked a lot in the staging lanes.

Thanks alot for the info , Youve realy helped me alot trying to figure things out....

Ive herd you realy know youre sh#t about these old Fords.
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Old 06-09-2009, 12:20 PM   #11 (permalink)
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Re: 351c. D2ae -ca 2v

What I don't know I can certainly lie about LOL. I'll post what I can be sure of, or try to direct you to those that may have better answers. Take a look at 351cleveland.net, lots of builds there and archive info - also the 351C Wiki Home - Clevelands Forever!

I wouldn't know what I might without hands on work plus the collective knowledge of friends and other 351C builders on the net.
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Last edited by ckelly; 06-09-2009 at 12:23 PM.
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