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Topic: Why does this guy want so much? (Read 1649 times) previous topic - next topic

Re: Why does this guy want so much?

Reply #1 –
He'll get it. Just do a search for "boss 429" in ebay motors. A fan for $1200, a set of rockers for $1800, a complete '69 Boss '9 currently at $120,000. Boss '9 parts are hella rare and hella 'spensive!
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: Why does this guy want so much?

Reply #2 –
so far,, its not a "BOSS" perse'.  still digging but if the heads are original,, they dont fit the boss data i have.
--------

its prbably a cobra or super cobra jet
not a boss.  Someone needs to tell him.

i bet if he knew there was a 429nascar, he'd probably called it that.

Re: Why does this guy want so much?

Reply #3 –
What differentiates the 'BOSS' from a regular 429 other than the heads/intake?
1980 birds X 3, 1982 bird, 1984 XR7, 1988 TC

Re: Why does this guy want so much?

Reply #4 –
Ford 385-Series Family

429 (Thunderjet)
two-bolt main bearing cap
Bore and Stroke 4.36x3.59
cast-iron crankshaft
forged-steel connecting rods with 3/8 inch rod bolts
cast-aluminum pistons
hydraulic lifter camshaft
2.08 inch/1.66 inch intake/exhaust valves
non-adjustable rocker arms
cast-iron intake manifold
4 barrel or 2 barrel carburator
Was available in Ford and Mercury automobiles

429 Cobra Jet
Four-bolt main engine block (with exception to some early 1970 models).
Larger cylinder heads---2.25 inches/1.72 inches intake/exhaust.
Rocker arms were stamped steel 1.73:1 ratio with sled type fulcrums, threaded screw-in rocker studs and pushrod guide plates.
The rocker arms on the 429 cubic inch Cobra Jet were also adjustable prior to 1969.
Cobra Jet used a Rochester Quadrajet carburetor atop a spread-bore cast-iron manifold.

429 Super Cobra Jet
4 bolt main engine blocks
Forged aluminum pistions
Mechanical lifter camshaft
Adjustable rocker arms
780cfm Holley four-barrel carb

429 Boss
All aluminum cast cylinder heads
Cresent type combustion chambers
Intake/Exhaust valves of 2.28in and 1.90inch
Exhaust valves are "D" shaped
4 oil galleries
Identified by casting 429HP on block
Higher iron nodularity content with thicker cylinder walls
2 Versions of the 429 Boss existed, they were 820-S & 820-T
Forged steel cross-drilled crankshaft
Forged aluminum pistons
Aluminum dual plane manifold w/735cfm Holley four barrel carb

429 Nascar
Larger Outboard bolts in #1 main bearing cap.
Deck height was grooved for O rings.
Larger machined refliefs for exhaust pushrods
Longer street rods, than the Boss 429-820S type
Some blocks had full hemi design, others crescent type
Stainless steel intake valves
Magnesium valve covers and intake manifold.

460
Produced from 1968 to 1996.
Available in Ford, Mercury and Lincoln.
Same as 429, but with longer stroke. (3.85 inch)
During its earlier years, pre 1973, horsepower was rated at 365. After 1972 horsepower ranged from 208 to 275.
Intake/exhaust valves are 2.08/1.66
Intake/exhaust valves for the Police Interceptor 460 heads (from 1973-'74) measure 2.19/1.66

Re: Why does this guy want so much?

Reply #5 –
Those are definitely Boss heads. Not even a bit of doubt there. They are some of the most beautiful heads ever produced. The D-shape was the ports, not the valves (D-shaped valves wouldn't work), and the "crescent" shaped chambers are actually semi-hemispherical, hence the engine's nickname "Semi-Hemi". It's also known as the "Blue Crescent".

Even if the block isn't correct I'd wager he'd get the $20k for the heads, intake and valve covers. Those things are very, VERY rare, way rarer than any Chrysler Hemi. I think they made something like 1200-1300 engines, just enough to make it NASCAR legal (they needed 500 per year).

Didja know there were two Boss 429 Cougars made in '69? I think one of them has been found and is undergoing a concours restoration. Imagine what THAT sucker will be worth...
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: Why does this guy want so much?

Reply #6 –
Dang, look at the size of those heads!!  :eek:  Their bigger than the heads on my 351C that I building for my Bronco!

Re: Why does this guy want so much?

Reply #7 –
Mmmm... 4 bolt mains, too.

Re: Why does this guy want so much?

Reply #8 –
! thanks jcassity
1980 birds X 3, 1982 bird, 1984 XR7, 1988 TC

Re: Why does this guy want so much?

Reply #9 –
Quote from: tbirdscott
! thanks jcassity



apparently, my info is not a good resource.  I need to mix match some info i found on timelife about muscle cars and see what i come up with.  Thunderchicken picked on those being boss heads right way and im still a little confused myself.  ,,, missing the see and touch factor cause you dont run into this stuff anymore in person.

Nevertheless,,,,,,,,,,,,,,,,
i dont give a  about any of my opinions on it being boss or not, id die for that whole setup!!!!!!!!!!! as it sits boss or not.

I was actually more interested in number 1 main bearing but the photo does not show it.

which photo showed the exhaust chambers anyway,,?

Just look at that valve train,, drooooolllll

Re: Why does this guy want so much?

Reply #10 –
Identifying Boss heads is simple. If it has valve covers that look like that it's a Boss. The Boss was Ford's answer to the Hemi, which would explain the big-assed Hemi-style valve covers. The engine was so wide that Ford had to modify the '69-'70 Mustang's shock towers just to fit it in.

The '69 Boss 429 Mustang is, and always has been, the #1 item on my "things to buy when I win the lotto" list.
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: Why does this guy want so much?

Reply #11 –
Thats a sweet setup for sure checked the site and it sold for $19,500 thats the price of my cougar times 13 OUCH
Quote from: Krazy_Kling;210178
Honda owners are like rabbits......they hide under your shed during the winter and then 30 of them come popping out around spring.
ASE certified parts specialist.
1988 Mercury Cougar Blue Max edition. SOLD
2004 Impala
My Cardomain http://www.cardomain.com/ride/799588

Re: Why does this guy want so much?

Reply #12 –
I thought that Cobra Jets and Super Cobra Jets were a 428 engine...?
I'd guess that those Boss 429's are one of the rarest big-block engines ever...
Kar Kraft, an outsource company, actually modified the 69 and 70 Boss Mustangs for the huge engine.
They had to widen the front track of the car, which improved the handling of the car, coincidentally.
Also, the battery was installed in the trunk for more under-the-hood room.
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

Re: Why does this guy want so much?

Reply #13 –
it probably would have sold for more....without the BIN
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: Why does this guy want so much?

Reply #14 –
Quote from: FordTruckFreeek
I thought that Cobra Jets and Super Cobra Jets were a 428 engine...?
I'd guess that those Boss 429's are one of the rarest big-block engines ever...
Kar Kraft, an outsource company, actually modified the 69 and 70 Boss Mustangs for the huge engine.
They had to widen the front track of the car, which improved the handling of the car, coincidentally.
Also, the battery was installed in the trunk for more under-the-hood room.

I think starting in '70 or '71 the hi-perf 429 was called the Cobra Jet. I'm not sure though, Tom would probably know better than I.
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣