Is there an easy way to tell the difference between a 429 and a 429 Super Cobra Jet ?

 

Start by codeing the heads. Like the intake, should be D0OZ's. If you can see the block number it will be D10Z-6010-A. If in fact, its a scj.

 

Good advice, thanks, I remember something to do with the valve cover bolts ? does this ring a bell with anyone ?

 

429 Cobra Jet and SCJ engines have tunnel port heads... (oval) intakes..... the std thunderjet 429 from a T bird/lincoln has rectangular ones. You can see the oval ports by looking at the intake from the outside of the engine..its obvious

The SCJ came with a holley carb and matching intake,,,the CJ had a GM Quadrajet carb (go figure...) on a matching intake, The CJ had cast pistons and a hydraulic cam...the SCJ had forged pistons and a solid lifter cam.

Its sometimes hard to tell a CJ and SCj w/o tearing into it...a lot of guys with CJs switched intakes and cams ...but maintained the cast pistons...so what appears to be a SCJ isnt one till you see forged slugs and the rest mentioned above.

 

All 429s and 460s run the sample valve cover bolt pattern except the Boss 429.

 

Intake casting number behind the carb will be DOOE-8425-C for a SCJ or DOOE-8425-B for CJ. The heads will have a DOOE-R. Block should be either a DOVE-A or D1VE.
The two valve cover bolts that are above the intake ports go though into the intake port on SCJ heads where regular heads they don't.

buffalobob, the regular heads have oval ports also as do all production castiron 429-460 heads. I don't know where you read or heard about the rectangular stuff.

 

Oval vs rectangular ports is big block chevy stuff. as far as I know ALL SCJs have DOVE-A blocks, and were 4 bolt mains, cj's might or might not be 4 bolt mains. SCJ heads have a DOOE-R casting number. the easiest is using hte intake casting numbers posted by greenhighboy though since they are the easiest to find, and get too
BTW not all DOVE-A blocks are 4 bolt main, nor are they all SCJ blocks. infact some were nothing more than regular old 2 bolt 429, or 460 passenger car engines. Also Boss 9 blocks used the DOVE-A casting number but have a different oiling system in them for priority main oiling, and the oil passage to the rockers goes through the block, and into the heads instead of through the pushrods, thus you can use the regular DOVE or any other block with boss heads without major reworking they don't work.

 

Just out of curiosity Rob, since my reference book says the heads would be D0OZ's, (and the block a D10Z) and both you and green are saying they should be D0OE's, and the block a D0VE, is it safe to assume the codes in my spec book are wrong? Be good to know so I can toss it out the window now...

 

yes the codes for scj won't have a z in them.
Oh, and there is no such casting as D10Z, it would be D1VE- and that casting number is for 71 to 78 and wasn't used any earlier than 71 so the 1970 429scj would have the wrong casting revision code.

 

Yea, I thought that was weird, but, thats the only codebook I have for 429's. Guess I'll use it for toilet paper I hate passing along bad info...glad you guys corrected it.

 

I have one of those D0VE-A blocks.... Ive never looked, but I assume its just a plain old 2 bolt main

Always armed with excellent info Rob, thanks for sharing your knowledge with the masses.....

I think Im gonna go outside now and see if I can blow it up......

(just jokin with ya bear)

 

Kevin most likely it is a 2 bolt but with Ford you never know without looking, expecially since that was the end of the 60s and guys still had good drugs I swear you would find the strangest stuff in places you never expected it. So if you ever get the chance take a look at it and see you might get lucky and happen to have a 4 bolt.
Oh, and another little tid bit, some of the D1VE blocks were also thick main web blocks, and rumor has it that some were even 4 bolt main blocks but so far they seem to be as plentiful and cheap to get as D7TE, and D8TE 4 bolt main truck blocks (No they don't actually exist so don't ask, and don't even go there.)

 

I'm going to throw in a few more numbers here to add to our confusion ! I remember an easy way to tell if a 385 was a CJ/SCJ or a standard 429 was by the valve cover bolts (as Greenhighboy mentioned) on a standard 429 if you stick a nail into the bolt hole above the intake runner the nail will stop short, on the CJ/SCJ the hole goes clear through to the intake and needs to be blocked off when your setting the valves on a solid lifter cam.
Cylinder Head Casting Numbers.
429/460 68-71 C8SZ-B
C8VE-E
D0VE-C
72-74 D2VE-AA
D3VE-AA, A2A
75-78 D4VE
429CJ, SCJ 70-71 D0AE-H
and Police C9VE-A

460 Police 73-74 D34E
75-78 D4VE

Part Number.
429/460 68-70 D0VZ-6049-D
429CJ/SCJ 70 D00Z-6049-H
429 BOSS 69-70 D0AZ-6049-C

Intake Manifold.
429 68-70 D0AZ-9424-A
429/460 68-70 D0VY-9424-A
429CJ 70 D00Z-9424-C
429SCJ 70 D00Z-9424-B
429 BOSS 69-70 C9AZ-9424-D

 

ok first off there is not casting numbers of D4 for blocks or heads the blocks were D1VE-?? (the reivsion numbers changed over the years) for 71-78, and D7TE from 79 on
heads were D3VE from 73-86 although supposedly there are some with the E5, and E6 casting numbers from 85, and 86 but are basically the same as the D3 castings.
about the only ones that had different casting numbers for the Police version was the 72 heads will have to look up the casting number for the actual numbers.
you mentioned the 429/460 intakes from 68-70 as all have a DOVY casting number which is also wrong because the D0 would indicate it first bieng used in 1970 so couldn't have been used on 68, and 69s and that number is wrong to begin with, and I am pretty sure that number is totally off base too same mistake was made on the 429 intake listed.
you also listed head casting number C8SZ as bieng a 429/460 68-71 sorry bad casting number to start with, and secondly they changed casting numbers in 69, and again in 70
You also listed the 70-71 SCJ, and CJ head casting number of D0AE nope please look above SCJ head casting number is D00E-R
You listed 72-74 as D2VE-AA nope that casting number was only used in 72 open chamber design and considered the worst of all the 385 series heads.
Not sure were you got those numbers from but looks like the same book Pro was using and would make good toilet paper as it's a lot of miss information.

 

The info I have is from two sources, Tom Monroe's "How to rebuild your FORD V8. 351C-351M-400-429-460.

And also, Hot Rod High Performance Series Volume 2 Number 4. FORD HIGH PERFORMANCE. these are the SVO guys.

That info was for only heads and intakes. No blocks.