429scj

[Kealhofer1@bellsouth]

I have a 1978 f-250 It has a 429 in it now that will need to be rebuilt soon. I was thinking how cool would it be to put a 429scj in it. What do yall think? Do any of you know where one is for sale?

 

[5.0Flareside]

428 CJ > 429 CJ.

nuff said...

 

[LEB Ben]

I don't know of where one is at, but you should be able to take what you have and 'make' it a SCJ. I was just reading up on this yesterday and it appeared to just be some stronger internals and maybe different combustion chambers and a few other things. I'd imagine if you got side by side lists, you could do it.

428 CJ > 429 CJ.

nuff said...

But he wants a SCJ.

 

[Kealhofer1@bellsouth]

I may be able to use my crank and rods, but I know I will need a block and heads. I just thought that would set the truck off. What engine would be cooler than that in your truck?

 

[FordF-SuperDuty]

There's no replacement for displacement, I'm not quite sure but judging the rarity a 460 stroker might be about the same price.

 

[5.0Flareside]

There's no replacement for displacement, I'm not quite sure but judging the rarity a 460 stroker might be about the same price.

taylor does have a very good point. but i think he's wanting it specific reason of its not usually done.

 

[Kealhofer1@bellsouth]

I know a 460 will have more power, but the 429scj will be plenty for what I want. If you could put any engine in my truck what would it be and why?

 

[FordF-SuperDuty]

400, because that's what came under the hood factory most likely.

 

[Blue Bomber]

I know a 460 will have more power, but the 429scj will be plenty for what I want. If you could put any engine in my truck what would it be and why?

I'd like to see a V10 with a couple turbos.

 

[1985 Ford F-150]

Id just look for the parts ya need over time and if the one ya got in there now takes a dump then get a junkyard motor or somethin to get ya by till your able to get the good one done.

 

[LEB Ben]

Id just look for the parts ya need over time and if the one ya got in there now takes a dump then get a junkyard motor or somethin to get ya by till your able to get the good one done.

My thoughts exactly. I think finding the block would by far be the most difficult and most expensive thing to get. And when you think about it, do you really need that extra 5% nickel content? It is your truck, and definitely would be cool. But I think I would just stick with finding the externals and internals that are different between a 429 and 429 scj. And if you happen to stumble across a scj block, woohoo.

 

[Kealhofer1@bellsouth]

I have found a few scj blocks for around $1000. I think the only difference is it being a 4-bolt main. I am going to have to do something before too long and I can't make up my mind.

 

[Mil1ion]

An 429SCJ will cost you at least $25,000. if you find one in the first place


My 70, 429CJ with 300,000 Miles on it works just fine thanks

 

[Kealhofer1@bellsouth]

An 429SCJ will cost you at least $25,000. if you find one in the first place


My 70, 429CJ with 300,000 Miles on it works just fine thanks

Are you CRAZY????

 

[Jotun]

FYI

The Ford 429

If you wanted a big block engine in 1968 you could choose a 427, 428 or the new 429. The top performance motor was the 427. The 428 was a ten year old FE design, more tamed down. And the new 429 was a brand new design called the "385" series. Available in two versions in 1968, the 429 and the huger 460. The later motor was for Lincolns and Mercury's.

The 429 was unique in many ways. It offered:

* Thin wall casting
* Longer bore centers than the FE block
* Huge bearings
* Canted-valve cylinder heads forming a slightly hemi-spherical combustion chamber
* Rocker shafts were replaced with rockers riding on fulcrums with separate pedestals

The canted-valve design angled the valves in the head. This allowed for larger ports and valves. It also permitted an better unshrouded mixture of gasoline and air into the chamber.

Ford needed a better NASCAR and NHRA motor. The 427 was gone. So Ford engineers developed a unique set of heads and placed them on a 429 Mustang in 1969. This Mustang was called the Boss 429. The head design was also used on a special 302 Mustang. That car was named the Boss 302. Ford sold enough Boss 429 Mustangs to qualify the motor for racing. The aluminum heads used in the Boss 429 engines featured:

* Modified hemi-spherical design
* One long and one short rocker arm per cylinder
* A single camshaft
* Stronger main bearings
* Different oiling system
* Four bolt mains

The Boss 429 was a "385" motor but with the above changes is not interchangeable with other 429 blocks.

In 1970 the 428 Cobra Jet Motor was replaced with a 429 CJ engine. The change occurred in the middle of the production year so some early Cobra Jet cars had 428's, later cars were 429's. The 429 Cobra Jet package included:

* Bigger heads with larger ports and valves
* Stamped steel rocker arms
* Screw-in rocker studs in the early 70 models
* Guide plates like used in the Boss 302's
* Compression was increased from 10.5:1 to 11.3:1
* Cast iron intake manifold
* Single 700 cfm Rochester carb
* Rated at 370 horse power

In 1971, Ford offered the Super Cobra Jet 429. This upgrade offered:

* Four bolt mains
* Forged aluminum pistons
* Bigger oil pump
* External oil cooler
* Cast iron crank shaft with higher nodularity than the base 429
* Mechanical camshaft with adjustable rocker arms
* Single 780 cfm Holley carb

The 429 motor was phased out in 1973. It's sister motor, the 460, continued in production.

The 460 motor is a 429 with longer stroke, same bore. In 1968, when it was first offered, the 460 was rated at 360 horse power with 10.5:1 compression. By 1972 the compression dropped to 8.5:1 with a horse power rating decrease to 212 HP. The next year, 1973, saw the compression down to 8.0:1 and horse power at 200 HP. However the way horse power was stated changed during this time. Early motors were rated using flywheel or brake horsepower, in '72 net horsepower was used. (The difference being whether all the power robbing accessories are considered.)

 

[Mil1ion]

Are you CRAZY????

in this case .....not at all

 

[Alvin in AZ]

Are you CRAZY????

in this case .....not at all

Yeah but, -only- in this case.

Cool post, Joten, thanks!

Alvin in AZ

 

[m78]

I know where 2 differant Cyclones are sitting, rusting away.
But the owners won't sell.

 

[Kealhofer1@bellsouth]

Can the crank and rods from a mid 70's 429 be used in a 429 scj block with 4 bolt mains? I have a 429 in my truck now and was wondering if I pick up a scj block and heads will the rest of my stuff work or is there more differences than I realize

 

[Mil1ion]

There were no mid-70's 429's

They quit production in 1972.

Would you like a 429/429 CJ/429SCJ part list ?


https://acrobat.com/#d=7DSdrCxASluH1Br8wfe92Q