Thread: 1972 429 info?
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11-12-2004 06:15 PM #1
1972 429 info?
Hi,
They guys I talked to today said the 429 came from a '72 Ford (see my post below). I read my old Ford book and in 1972 it listed the 429ci engine horsepower as 212. I cannot verify the year yet but if it is in fact a '72, is it still a good candidate for a performance build up? I am thinking that the 390 in the Galaxie right now has more horsepower than the 429.
Thanks,
Justin- 1965 I6 Coupe -
Dual out header
Dual exhaust
Borla ProXS mufflers
1953 Buick Super
1965 Ford Galaxie 500XL Convertible
1962 Ford Econoline
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11-12-2004 06:28 PM #2
1972 was a 1 of the gas wars times when engines were getting low compression for economy, and the 212 HP sounds right, I'd have to say no, the most desirable 429's are the '69 - '70 429's, the 390 is the better choice.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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11-13-2004 08:49 PM #3
I had a '72 429 in my Bronco, when I first bought it. What a turd. Thankfully, it's since done itself in, and has been replaced with a '70 429. MUCH better than before
I HAD thought about doing everything the techinspector has suggested, but had decided that spending $500 for a rebuilt '70 with 30K on the clock, was a far better, and easier, deal78 Bronco, 3" lift, 36" swampers, 429, C6, stock axles and gears, David-built F&R bumpers and HD roof rack
Hope to have soon - 79 Bronco, to convert to 2wd, to be lowered, bagged and tubbed
I've been building bumpers, rock sliders, and anything else I can, to TRY to support my hobbies
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11-14-2004 06:13 AM #4
Techinspectors overview of the reasons for the performance drop on these engines is correct, but I want to add a little bit for those of you to those of you who are tempted to compare factory HP ratings of the engines from the 60's to the HP ratings of the 70's engines. In 1972 (if memory serves correctly) the HP rating system changed from gross to net Horsepower. The result was an instant drop in HP numbers even though in some cases the engines were unchanged from the 71 versions. Comparing gross and net numbers is comparing apples and oranges.
The 70 429s did make good HP however they did it with either 10.5 to 1 or 11.3 to 1 compression (the specs tech provided). From personal experience trying to run this much compression on the street is not a lot of fun. If you do build the 429, I would strongly suggest keeping the compression down to 9 to 1 (stock compression on the 72 was 8 to 1).
Also for the 429/460 owners I want to highlight what Tech said ".....use a 68-70 timing chain and sprockets......." in a effort to reduce emissions Ford retarded cam timing on the 72 and latter 385 series engines with a resulting loss of performance. Dollar for dollar using the earlier timing set likely the most cost effective performance mods you can do for these engines.
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11-14-2004 06:57 AM #5
Thanks for the responses. I will not be able to verify the year until I get the engine later this week. Still assuming it IS a '72, is it a good candidate for a build up (can I get it to perform as well as the earlier 429s) or should I sell it and make a profit? The price of the engine was $150.00. I already know of two people who want the engine that would probably take it for at least $250.00.
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11-14-2004 01:19 PM #6
I'd sell it and make profit, you will spend less time and money making the 390 a performer than the low compression 429 unless it is a 1969- 1970 or 1971 and not a 1972 up.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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12-05-2004 10:13 AM #7
Originally posted by TheDude
...assuming it IS a '72, is it a good candidate for a build up (can I get it to perform as well as the earlier 429s) or should I sell it and make a profit? The price of the engine was $150.00. I already know of two people who want the engine that would probably take it for at least $250.00.
The later model D3VE-A2A heads can be made to work, also, depending on what you wish to do.
The rest of the engine is worthy of rebuilsing for sure.
Paul
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12-05-2004 10:17 AM #8
Originally posted by Matt167
...you will spend less time and money making the 390 a performer than the low compression 429 unless it is a 1969- 1970 or 1971 and not a 1972 up.
Paul
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10-15-2005 07:03 PM #9
What about the 71' 429s? is there a way to remove the emission stuff to free up some power?
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10-16-2005 06:16 AM #10
I've ran the Edelbrock Performer RPM heads on a few big blocks. With a good cam they will make gobs more torque than and FE engine. Torque works great in heavyweight (over 3,000 pounds) street machines. I have also ran the Edelbrock Air Gap intake, thought it worked great..... JMOYesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance