a 429????hhhhmmmmmmm

[RAGE_5.0]

well this morning i was looking in the newspaper when my eyes became fixated on an add
it said 1970 429 rabuilt........thats all it said no price or anythin
i am thinkin about callin this guy to see wut he wants for it and when it was rebuilt.....could i fit this in my 1990 gt????
i know i would have to change rear end transmission driveshaft and bell housing
wut else would i have to change for this to work???
if anyone could tell me wut kind of et i could get with a 429 it cxould probably help my decision

thx in advance
JAMES

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Black 1990 gt cobra bonestock
not for long

[Unit 5302]

Don't confuse cubic inches with power.

The non Boss 429 was a dog in stock form. If you want to mod it that's fine, but I still think you'd be better off with a 302 or 351 windsor engine.

[RAGE_5.0]

k unit thanks for the info

i was just wondersing about that

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Black 1990 gt cobra bonestock
not for long

[RAGE_5.0]

unit would a 351 cleveland or a 390(out of a mustang or torino) go really good in the gt?
and are the 429scj dogs to?
i want something that not to many people have in the fox bodys


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Black 1990 gt cobra bonestock
not for long

[Unit 5302]

The Boss 429 semi hemi engine is a monster. As far as the SJC I believe all that has to do with is the internals of the engine.

There have been some people who've put the cleveland into their fox's. I personally like the cleveland, but I'm sure the FE engines are not too common in the fox's either.

[86GT]

There's a guy from Wheatley that has Fox body stang with a 429 in it. Trust me, they may make only 370 horse, but try 460+ lb/ft of torque, unmodified. Then if you find a gem of a SCJ you'd be set. I've tried getting my oldest brother to sell me the 429CJ in his 70 Torino GT Convertible, but he's restoring it, so I'm stuck with my 5.0L.

Just like Unit said tho, you have to get the CJ or SCJ, the base or Thunderjet isn't all that great, didn't make much power for such a big cube engine. I'd say call that ad, and see what its all about, and find out what castings the heads are, etc..

[RAGE_5.0]

thx
wut mustang is the 1 with the 429?

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Black 1990 gt cobra bonestock
not for long

[Frank VandenBerg]

429 a dog? I don't think so. The Thubnderjet made more torque than the CJ and SCJ. The Boss was a good Nascar engine and wasn't that great for drag racing. A 70 429 is a good engine no matter which one it is. If it's newer than 72 it had big chamber heads on them. If it's a good price go for it.

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1989 LX Hatchback
5.0, 5spd., 3.73's, 65mm TB,gasket matched upper int., phenolic spacer,MSD wires, Accell coil, pullies, K&N, MAC cat-back,BBK 1 5/8" chrome long tubes,Steeda clutch quadrant, HPM subs, HD clutch
Best ET- 14.1
Best MPH- 101
60ft. 2.329

2000 Honda CR250R

[Unit 5302]

Originally posted by Frank VandenBerg:
429 a dog? I don't think so. The Thubnderjet made more torque than the CJ and SCJ. The Boss was a good Nascar engine and wasn't that great for drag racing. A 70 429 is a good engine no matter which one it is. If it's newer than 72 it had big chamber heads on them. If it's a good price go for it.

LOL... Yeah, that 429 was a brute. The 1970 429 was rated at 360hp@4600rpm "gross" and 480lb/ft@2800rpm "gross". Do a net hp conversion to that thing and your talking more like 280hp and 380lb/ft. 10.5:1 compression is what got those numbers up there. If you were to put 10.5:1 CR on a stock 302HO engine, you'd be looking at 250hp or so and 330lb/ft. The ratings on the 429 Semi-Hemi are a bit skewed too. In truth it made way more than it's rating, as did the Cleveland 351 4v's.


Just spoke with my dad about that 429 engine. It raced in his class back in the early 70's. He was running a 63 Vert with 427FE. He said the standard 429 was a dog for the most part. He did say some of them ran, but most weren't any competition at all.

[Frank VandenBerg]

A stock Thunderjet 4V in 1970 had 11:1 cr. You're telling me that 280 "net" hp could put a 4100 pound Torino ragtop into the 14.0 range at 105 mph? The motor in my Torino was dynoed after it was rebuilt with stock parts. With all the accessories on it pulled damn near 380hp@4500 and 510ft.lbs.@2900.

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1989 LX Hatchback
5.0, 5spd., 3.73's, 65mm TB,gasket matched upper int., phenolic spacer,MSD wires, Accell coil, pullies, K&N, MAC cat-back,BBK 1 5/8" chrome long tubes,Steeda clutch quadrant, HPM subs, HD clutch
Best ET- 14.1
Best MPH- 101
60ft. 2.329

1970 Torino GT convertible,429cid

2000 Honda CR250R

[Unit 5302]

I personally love how everybody thinks their old Musclecar is/was so heavy. Your Torino convertable weighs 3632lbs according to this website
http://www.torinocobra.com/specs.htm

A couple sites that I visited seemed to think your Torino could run in the 13's with 280hp at that weight, including this one. I didn't feel like searching again for the site that listed the 429 at 10.5:1 compression. The fact you state it's 11:1 makes it all the more unimpressive to me. It's iffy to even get away with pump gas with compression that high on iron heads. As far as the 105 trap the analyzer on this page puts you at 340hp. The analyzer also puts my car at 280hp. A figure I know is optimistic. Another analyzer was more conservative putting you at 300hp to make that trap with your weight.

How about a tidbit of Mustang info. Most of the late 60s Mustangs were lighter than the Fox body's. Just because it has a frame and some iron doesn't mean it's heavy. All the bells and whistles on the new cars add up in the weight fast.

[This message has been edited by Unit 5302 (edited 09-22-2001).]

[Frank VandenBerg]

Sorry to insult your web surfing skills. I've got a scale ticket on the weight and dyno sheets. I've owned 4 late 60's Mustangs. Anyways you gotta be right. What was I thinking? Computer analyzers are the cats *** and would be 100% dead nuts. Sorry you're the man.

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1989 LX Hatchback
5.0, 5spd., 3.73's, 65mm TB,gasket matched upper int., phenolic spacer,MSD wires, Accell coil, pullies, K&N, MAC cat-back,BBK 1 5/8" chrome long tubes,Steeda clutch quadrant, HPM subs, HD clutch
Best ET- 14.1
Best MPH- 101
60ft. 2.329

1970 Torino GT convertible,429cid

2000 Honda CR250R

[1BAD89]

Ahahaha, gotta love those analyzers and G-tech's. =P

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1989 GT, 3:55's, full exhaust, 4 in. hood, Pro 5.0, Have many other parts 4 sale. All parts for sale now.

2000 Camaro SS-A4, 13.7's bone stock.

1989 Chevy S-10, EX. Cab-383(500+hp on motor), trick flow heads, trick flow pistons, etc... autometer phantom gauges, "built" 700R4, roll cage, lexan back window, corbeau seats, R.H.S. 5 harnesses, Fuel cell, convo pro wheels, 15x14's with 29x18.5 M/T'S on back, 15x4's on front, nitrous, and so much more!

[Unit 5302]

4100lbs seems heavy to me when the older standg weigh less than the newer ones, but if it weighs 4100 then it weighs 4100. The website I referenced had a ton of info on the car, which seemed reputable to me, as much as your claims anyway.

Dyno sheets I don't really give a rats *** about. I've seen enough of those being bullshitted not to trust them. As far as the 429 being a real performance monster it seems strange that most of them didn't run, according to people like my dad who raced in that class 20 years ago. Tuning a car right equates for a shitload of performance. Are you running electronic ignition, aftermarket, stock carb and all that? A good tune can pull tons of hp out of one of those old carbed machines.

1BAD89 You had your shot at me and my Gteched car, but as I recall, as soon as that was brought up you disappeared. LS1 in the shop?

[bigwhitecobra]

Here's a thought. Take an aluminum 429, put a fuel injection system on it and a Vortech T-trim, in a street driven car. One day I'll have that combo, and sub-8's on a street car will be the norm.

Well, maybe not 8's but still damn fast.

[86GT]

I think this is turning into a pissing contest and getting away from RAGE's question.

RAGE, it can be done, there's a few people locally that have put a big block in their cars, and they are monsters. It does take quite a bit of patience. Consider that you are not only going EFI to carb, but small block to big block. So you'd need all the items to go from SB EFI to BB Carb'd. After that, you may be disappointed, or may not. If I were you I'd stick with the small block EFI with some good heads, intake, cam, etc. And consider a blower or nitrous in the future. That's what I did over putting a BB in my car.

As for E.T.s it comes down to suspension, tune, and skill, as well as traction and a bunch of other things. The one guy's car (an 86) with a 429 in it runs consistent 11.8s on 87 octane with ET Streets, but has a good suspension setup (remember the BB weighs a ton more than a SB, and that's all in the front of the car, not where you want it).

[Unit 5302]

This isn't a pissing match. I'm just not all that impressed with some of the older engines. The standard 429 is one of them. It was only produced for a few years, and it never made the name for itself that the 427 or 428 did.

I'm not going to dispute the 429's potential. Only that from the people who were running when the 429 was on the streets, it usually wasn't much competition. Keep in mind, my dad was running low/mid 13's in a '63 Full Size Vert. His friend was running 14.0's with the 390 tri power in the full size as well.

[RAGE_5.0]

joe i think i am gonna take ur advice considering i don't have the money to do the job all at once and it if i do it half assed i will probably hate the car and sell it
i think i got it worked out how i'm gonna do it
this summer suspension and small mods
2nd summer heads intake cam and all that ****
3rd summer vortech t trim
maybe it will take 4 years
good things are worth waitng for

thx to anyone who gave advice to me on this topic

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Black 1990 gt cobra bonestock
not for long

[1965GTO]

Rage5.0 you would not need to change your rearend if you have an 8.8.You could definetly build any 429 to make more power than a 5.0 in the same modification range but would probably cost a little more. You could even put the king of all ford engines in a mustang, although modifications would be needed, the 429SOHC.

[mustangII460]

My dog has 826 HP @ 827 LBS TOURQE.

But hes a BIG A$$ DOG!!