A guy on another forum said that the head # C9VE-A was a CJ head. But I believe I have seen on this site references to that head # being just a regular passenger car head, with the same architecture & layout as the C8, & D0VE heads.....what's the truth?

Tell him that the book that provided this info is inaccurate and that the proper Cobra Jet head casting # is D0OE-R. A C9VE-A head is a production passenger car 429/460 cylinder head and NOT a CJ or SCJ head. The C9VE-A head has smaller valves, smaller intake ports and larger combustion chambers.

Paul

 

ya, you have to be carefull with those so called tech books. i have one that says the c9ve is a p.i. head.

 

Thanks Paul, I had a feeling his info might have been a case of incorrect info from a book thing, but I wasn't sure.

The guy also kinda tried to jab Rapid Russ on info Russ posted about the C8,C9, & D0VE heads. I think he read Russ's post wrong & thinks that Russ is saying the D0VE was around in 68/69. But the way I read what Russ posted, he is just listing in correct chronological order the years of each mentioned head numbers.

I also listed some basic 460 head info there, (hope I got the basic info correct). The D3 & D2VE info I posted contains some info based on your past posts, hope that's OK.

http://www.ford-trucks.com/forums/showthread.php?t=503222

 

A guy on another forum said that the head # C9VE-A was a CJ head. But I believe I have seen on this site references to that head # being just a regular passenger car head, with the same architecture & layout as the C8, & D0VE heads.....what's the truth?

Tell him that the book that provided this info is inaccurate and that the proper Cobra Jet head casting # is D0OE-R. A C9VE-A head is a production passenger car 429/460 cylinder head and NOT a CJ or SCJ head. The C9VE-A head has smaller valves, smaller intake ports and larger combustion chambers.



Paul,
I am now running a set of D00E-R heads that once was run by Jetboat Bob, I put new valves, springs, ect. in the heads but did not check the volume on the combustion chambers, I was running fully ported C9VE heads and had them cc'd and they were 72cc chambers per the machine shop.
Are you saying that my D00E-R might be smaller chambers than my C9VE? Or maybe my machine shop miss informed me?
Thanks for your info.

 

dooe-r

Last year I had my DOOE-R's off for a rebuild and I cc'd them at 72cc on the money that was with 1 piece SS severe duties in it.
Years ago I measured my DOVE's and I seem to remember 73-74 cc's with stock valves.

 

Paul,
I am now running a set of D00E-R heads that once was run by Jetboat Bob, I put new valves, springs, ect. in the heads but did not check the volume on the combustion chambers, I was running fully ported C9VE heads and had them cc'd and they were 72cc chambers per the machine shop.

Are you saying that my D00E-R might be smaller chambers than my C9VE? Or maybe my machine shop miss informed me?

It is likely that the C9VE heads have been resurfaced and lost combustion chamber volume as a result. Losing a few cc's from resurfacing is not at all uncommon.

Paul

 

F-Y-I, I just c c a set of c9's they were 74cc,

 

I read some of the posts from that screwball...

he needs to lay off of the crack pipe :!:

I thought about correcting his misinformation but to what end? He is one of those know it all clowns who must be right at any cost. The real problem with folks like him is that they spread information that is not correct !!! This brings the quality of the entire board down. The FTE moderators have to realise this. This is one reason I do not post there much. Just to much misinformation.

We all know that C8 castings are 1968, C9's are 1969 and D0VE A and C are 1970. 1971 were D0VE C's. There is some banter about a D1VE casting but I have never seen one. The early castings are all the same and interchangeable. The differences are so subtle that I defy anyone to tell the diffference with out the date codes or casting numbers.

And here I thought I was the self appointed iron passenger car cylinder head expert LOL !!!




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Was the 429 engine available in police cars in 1969?Since the CJ and SCJ didn't come out until 1970 and the actual police casting started in 1972 I wonder if the confusion started by someone finding a set of C9VE-A heads on the 1969 police car and thinking they were something special.They would be correct in stating that they had police heads although the casting would be the same as the regular passenger car versions.

 

Don't know about 1969 Ford PI cars, but I'd have to generally disagree with the legitimacy of calling C9's PI heads. The idea here is to differentiate the PI head from the passenger car head. C9VE's are passenger car heads and D20E-AB's are PI heads pure and simple. This doesn't make the 1969 C9 head any superior were it used on a police car, and we know that the D20E head was indeed designed specifically for the emergency vehicles.

One example of this perspective that I can offer is that the 1971 429 Police Interceptor motors (apparently) came with D0OE-R heads. In other words, CJ heads. But we don't call them PI heads because they were used on 1971 429 PI motors.

Paul

 

While I can't speak for all '69 police cars, my former employer had several. They ALL had bone stock engines. They ALL had chassis, suspension, and brake "improvements", known as a durability, or taxi package.

 

Well, Paul just stay over here with us...........hails!.........D

 

Actually in 69, and infact 70 I believe that a police interceptor package would have an FE not a 460, so the C9VE heads should not be on it. someone may correct me on this but it just seems by my recollection that until 71 or 72 the 390 was the police interceptor engine per se. Thats not to say that some police forces didn't have 460s but those wouldn't be interceptor packages.