429 verses 460
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From: Mississippi
429 verses 460
I am not to familiar with the 429 and 460 motors. I have read some on them. I feel that the 429 would be a better stock motor to build than the 460 because they were built in the horse power era. Most 460's were built when they focused on emissions. I am not saying that the 460 is a slug, I know that a lot of people build some and produce a lot of power. I was wondering if the 429 head design was better than the 460's? A friend of mine has a 429 and a 460 and he is going to build one of them with stock heads.I know that the 460 has a longer stroke which means more displacement.Are the 429/460 heads the same for the most part or does it depend on the casting numbers of which head, like in most cases?I'm asking these questions for a friend of mine.I haven't had a chance to look at his casting numbers and research these two motors for him to give him my opinion.If someone could let me know their thought it might save me some time researching for him? Thanks, zrxlover
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Well, the first thing you do to a 429 to make more power is stroke it out to a 460.
Read through here:
https://www.ford-trucks.com/forums/9...tic-460-a.html
There is, amongst the other "discussion", some good info on heads.
Some are better than others, but even the less desireable heads can be made to work. Aftermarket heads are best for big power.
It is true that 429s were intro'd in the "horsepower era", but those engines are 40 years old now, some were 11:1, and you'd be going through it from top to bottom anyway if you wanted a performance motor today anyway. So, you be putting in the 460 or even a bigger stroker crank if horsepressure is what you're after.
Most post '72 or so 460s are slugs in stock form, compared to 427s, CJ 428s, Boss 429s, Thunderjet 429s, etc. The thread above shows it is possible to build one into a well equipped slug also.
Do your homework. Lots of good info here, read through 10 pages or so.
Read through here:
https://www.ford-trucks.com/forums/9...tic-460-a.html
There is, amongst the other "discussion", some good info on heads.
Some are better than others, but even the less desireable heads can be made to work. Aftermarket heads are best for big power.
It is true that 429s were intro'd in the "horsepower era", but those engines are 40 years old now, some were 11:1, and you'd be going through it from top to bottom anyway if you wanted a performance motor today anyway. So, you be putting in the 460 or even a bigger stroker crank if horsepressure is what you're after.
Most post '72 or so 460s are slugs in stock form, compared to 427s, CJ 428s, Boss 429s, Thunderjet 429s, etc. The thread above shows it is possible to build one into a well equipped slug also.
Do your homework. Lots of good info here, read through 10 pages or so.
Post Fiend
Joined: Mar 2004
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From: Union, Washington
First rule of high performance,
"THERE IS NO REPLACEMENT FOR DISPLACEMENT!"
The 429 came on the scene in 1968, the 460 arrived a year later. The only reason the 429 received the high performance attention was because NASCAR had a cubic limit rule that excluded the 460. But all the 429 heads, intakes, etc will fit on the 460, well at least the early one without adapters.
"THERE IS NO REPLACEMENT FOR DISPLACEMENT!"
The 429 came on the scene in 1968, the 460 arrived a year later. The only reason the 429 received the high performance attention was because NASCAR had a cubic limit rule that excluded the 460. But all the 429 heads, intakes, etc will fit on the 460, well at least the early one without adapters.
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From: Mississippi
Thanks 85e150six4mtod, I will loook @ the web site or send him to it? Hopefully it will give some specs. If the heads are very similar then I agree, 460 or stroke it. Raising the compression and other parts on a 460 would be beneficial. I will look at this info to help him out. Thanks Bear 45/70, I didn't know of the cid limit in Nascar at that time.That would account for the 429 showing higher power ratings. Thanks both of you.
Post Fiend
Joined: Mar 2004
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From: Union, Washington
Actually the standard 429 4 barrel was rated at 360 hp (the 2 barrel was only0320 hp) while the 460 was 365 hp. The CJ and Boss motors were the real horsepower makers. Their advertized hp were extremely conservative. The CJ and SCJ were rated at 370 hp while the Drag Pack was 375 hp. The Boss was also rated at 375 hp, but none of the good piece from the Boss will fit on the standard or CJ blocks.
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If however you're looking into making a Boss, look into Jon Kaase, the new Boss heads are designed to bolt onto standard blocks, and the heads are an improved casting with fewer flaws and better alloys. if you're looking for a cheap build though, thats the wrong course. build the 460. remember that for a truck its not all about horsepower. sometimes the smaller port of the 460 heads can be better for low end torque, since it creates more intake velocity. if you're looking at a street beast, or a car engine, look at the bigger ports of the super cobra-jet, they'll flow more up top where the big HP numbers reside at...
Ford Parts Specialist
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From: Simi Valley, CA
Both the 429 & 460 were introduced in 1968.
1968/71: 460's were only available in Lincoln's and Continental Mark III's.
The first Ford Passenger Car to have a 460 was the 1972 Thunderbird.
1968/71: 460's were only available in Lincoln's and Continental Mark III's.
The first Ford Passenger Car to have a 460 was the 1972 Thunderbird.
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From: Mississippi
Thank you all for the information, I mainly full with FE motors but have read some on the 429/460's. I know some about (327,350,383,400,454,)Dodge(318,340,360,383,426 motors). I will pass this on to my friend,thanks zrxlover
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The only 1968 Lincoln VIN engine code (5th digit) was: A = 460/365 HP.
Info sources: "Off the cuff"
/ 1965/72 L/M Parts Catalog / The Standard Catalog of American Cars 1946-1975.
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Go to the top of this page.
See where it says "Post a reply"? Watch that space.
Now click on the Forum heading, "Big Block V8 - 385....".
Now you should see "New Thread" in that upper left space.
You have to be in the forum to start a new thread, not in a thread, which is where you are now.
Be sure to pick the correct forum--many to choose from.
Good luck.
See where it says "Post a reply"? Watch that space.
Now click on the Forum heading, "Big Block V8 - 385....".
Now you should see "New Thread" in that upper left space.
You have to be in the forum to start a new thread, not in a thread, which is where you are now.
Be sure to pick the correct forum--many to choose from.
Good luck.
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429 thunderjet
I'm planning to build a 429 thunderjet into a cammer. It sits right now; bored .035 over, 460 (crank & connecting rods), C9 heads (milled), 3/4 race cam & 700 double pumper holly.
Anyone know if it will accept the build to a cammer? I'd like to delete the push rods. (I feel they are a weak point).
I'm planning on running electric fan & water pump. dual fikter oil system. Already have a 4 core radiator.
Any input?
Anyone know if it will accept the build to a cammer? I'd like to delete the push rods. (I feel they are a weak point).
I'm planning on running electric fan & water pump. dual fikter oil system. Already have a 4 core radiator.
Any input?