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May 31, 2013 | 11:58 PM

ZFLASH

Thread Starter

Tuned

Joined: Oct 2011

Posts: 445

Likes: 3

Ford engine experts

Hey guys, got a couple of questions for you. I've come across a 429 Super Cobra jet engine,it's a DOVE-A block w/DOVE heads,1 fly cut,429 super cobra flat pistons,bored 30 over,460 crank rods. How rare is this and how good of engine is it,what HP should it get? I just put in a SBC 383,also have a LS1 I'm holding to put in. What I'm trying to do is justify buying this if it's a really good or rare engine and selling the other two. I'm so confused

,L8R ZFLASH

Jun 1, 2013 | 12:20 AM

ibuzzard

See A Man About A Horse

Joined: Apr 2003

Posts: 4,935

Likes: 697

From: Mariposa, Ca.

I'm no expert - at anything. But sell a scrub every chance you get.

Jun 1, 2013 | 02:28 AM

51dueller

Lead Driver

Joined: Aug 2002

Posts: 6,682

Likes: 12

From: Saskatoon SK Canada

It kind of sounds like it's not an original Super Cobra Jet engine. From what I know of these engines it needs to be DOOE-R heads not Dove which were your standard car heads. Also would be no reason to use 460 rods over the original 429 ones. Looks like a standard rebuild that became a super cobra jet engine on sale day.

I'm not big on factory headed engines as even standard basic aftermarket heads are a vast improvement.

Jun 1, 2013 | 05:57 AM

Marty Smilt

Mountain Pass

Joined: Sep 2010

Posts: 184

Likes: 0

From: Oconomowoc, WI

I 'm not an expert on the BBF. Sounds to me like the 429 block was used along with a 460 crank making it at least a 460 0.030" over. The rods are the giveaway. I think the rods are from a 460 engine - that would be a longer rod with a short piston pin to top of piston length. The longer rod / short piston in theory allows the piston to "dwell" longer at the top of stroke giving an advantage to the combustion time. (I know it is not "much" time but it is longer none the less.). If the crank is offset ground it may be many more cubic inches.
The only reason I know any of that stuff is a just got the same block and a C6. Thinking about building a 514 CU/IN monster for my 50. I will not be looking for high horsepower but rather high torque for a different slant on fuel economy. (what I told my Wife)

Jun 1, 2013 | 06:12 AM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

Likes: 787

From: Simi Valley, CA

D0VE-(6015)-A is the block casting number for 1970: Ford/Merc 429 & Lincoln/Mark III 460. D0VE heads also 1970 429/460.

429/460 share the same D0VE block, the bore is the same, the stroke is different.

Ho hum, it's not an original hipo, it's a plain jane car engine that someone modified.

Jun 1, 2013 | 07:57 AM

ChuckRob

Elder User

Joined: Mar 2012

Posts: 787

Likes: 1

From: Prescott AZ.

When you have a 429 block, cut .030 over with a 460 crank you get a 466 which is exactly what I have in my Mustang. The Dove heads are good heads but you still have to spend the money to port them to make some real HP and they are very heavy. By the time you spend the money to get them done you are close to the cost of set of brand spanking new alu heads that will make as much if not more hp and be a lot lighter. If you go with alu heads and intake you will drop about 70 lbs. which makes it close to the weight of a 351 Clevland.
My engine has a Comp Cam 280H it makes about 400+ HP and is a torque monster. I have it tied to a C6 with a slippery converter. It makes a great street, cruiser engine. It will pass everything but a gas station, I can't go far before I have to feed it.