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  #1  
Old 07-21-2014, 10:32 PM
AberrantGenus AberrantGenus is offline
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460 or ?

Bought my truck and the owner said it has a balanced and blue printed 460 out of a 71 Crown Vic. Went to O'Rielly's and tried to get some stuff for it but 460 isn't and option on the 71 Crown Vic. Or the Marqui. At least not in O'Rielly's system. So I was going to get casting numbers off the block but, yeah, no casting numbers. The spot where they are supposed to be according to other pics and other posts is vertically right above the starter? They arent there. Just a little inset oval with three little ****. I looked everywhere else I can physically get without pulling the motor. What gives? The heads are stamped D3VE-A2A. Can anyone help? Is it even 460? It looks like one and its giant.
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Old 07-21-2014, 11:31 PM
Moabion Moabion is offline
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Originally Posted by AberrantGenus View Post
Bought my truck and the owner said it has a balanced and blue printed 460 out of a 71 Crown Vic. Went to O'Rielly's and tried to get some stuff for it but 460 isn't and option on the 71 Crown Vic. Or the Marqui. At least not in O'Rielly's system. So I was going to get casting numbers off the block but, yeah, no casting numbers. The spot where they are supposed to be according to other pics and other posts is vertically right above the starter? They arent there. Just a little inset oval with three little ****. I looked everywhere else I can physically get without pulling the motor. What gives? The heads are stamped D3VE-A2A. Can anyone help? Is it even 460? It looks like one and its giant.
Hmm, my 71 LTD has a monster of a 429 in it factory. That's what I would bet but I I'm certainly not a guru on the beasts. IDK if I can find any casting numbers under all the dirt/dust/black widow webs, but in a pinch I can look in the daytime.
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Old 07-22-2014, 01:28 AM
85e150six4mtod 85e150six4mtod is offline
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The full size was not called a CV in '71. The 400 and 429 were the big motors. But your D3.. heads are 1973 code, so something isn't right here.

How does it run? Besides the B&B, what else is supposed to be done?
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Old 07-22-2014, 04:01 AM
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Only difference between the 429 and 460 are the crank and pistons. You'll have to measure the stroke to determine what you have.
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Old 07-22-2014, 11:07 AM
AberrantGenus AberrantGenus is offline
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Quote:
Originally Posted by 85e150six4mtod View Post
The full size was not called a CV in '71. The 400 and 429 were the big motors. But your D3.. heads are 1973 code, so something isn't right here.

How does it run? Besides the B&B, what else is supposed to be done?
The guy said it has a "mild cam" in it. So it lobes a little bit. Once it is warmed up it runs ok but misses some. So i wanted to get new plugs wires and all the goodies to tune it up. The entire truck was frame off restored in 2000. The rebuilt B&B "460" was put in it then. It only has 3k on it. The truck sat in the showroom of a ford dealer for most of its life since its restore.
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Old 07-22-2014, 11:08 AM
AberrantGenus AberrantGenus is offline
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Originally Posted by ATC Crazy View Post
Only difference between the 429 and 460 are the crank and pistons. You'll have to measure the stroke to determine what you have.
Yea, so do i have to take the heads off to do that?
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Old 07-22-2014, 11:21 AM
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Yea, so do i have to take the heads off to do that?
No not necessary .. Use a wood dowel in the spark plug hole ..
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Old 07-22-2014, 11:26 AM
AberrantGenus AberrantGenus is offline
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No not necessary .. Use a wood dowel in the spark plug hole ..
Ok Awesome. So, i can take the plug out, wooden dowel rod, mark the bottom and the top of the stroke? I have to turn the engine some how. Would i do that with a big wrench and turn the crank pulley some how? Sorry for the green questions I just havn't jumped this deep in an engine before..
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Old 07-22-2014, 11:44 AM
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Originally Posted by AberrantGenus View Post
Ok Awesome. So, i can take the plug out, wooden dowel rod, mark the bottom and the top of the stroke? I have to turn the engine some how. Would i do that with a big wrench and turn the crank pulley some how? Sorry for the green questions I just havn't jumped this deep in an engine before..
If your strong a 1/2" breaker bar and deep well socket at the the front of the crankshaft .. If you want an easy go of it take out the plugs and inspect and clean them while your there or replace if needed .. The motor will turn much easier with them out .. You could also do a compression check too .. Just bring the motor up to normal operating temps before you do it with plugs out ..
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Old 07-22-2014, 09:25 PM
AberrantGenus AberrantGenus is offline
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Originally Posted by redroad View Post
If your strong a 1/2" breaker bar and deep well socket at the the front of the crankshaft .. If you want an easy go of it take out the plugs and inspect and clean them while your there or replace if needed .. The motor will turn much easier with them out .. You could also do a compression check too .. Just bring the motor up to normal operating temps before you do it with plugs out ..
Ok. So I measured with a thin dowell rod. Did it twice from when the piston is at the bottom of the stroke and when it is at the top of the strok the distance is 4 and 19/32 or 4.59 inches. From what I am reading that is not the stroke of a 460 or a 429 huh?
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  #11  
Old 07-23-2014, 07:50 AM
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Originally Posted by AberrantGenus View Post
Ok. So I measured with a thin dowell rod. Did it twice from when the piston is at the bottom of the stroke and when it is at the top of the strok the distance is 4 and 19/32 or 4.59 inches. From what I am reading that is not the stroke of a 460 or a 429 huh?
This sounds like some stroked 460 ..
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  #12  
Old 07-23-2014, 10:35 AM
AberrantGenus AberrantGenus is offline
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Originally Posted by redroad View Post
This sounds like some stroked 460 ..
Yeah. 4.59 is almost an inch bigger. He did say it was a blue printed engine. But I wasn't sure because he didn't have any documentation. But now it looks as though he may be right. It doesn't have any more "exceptional" power or torque than another stock 460 so I was curious. Anyway, I dont know how to test displacement to get the true size. I am going to assume it was bored also. I would like to know why they used stock 460 heads if they bored and stroked it.
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  #13  
Old 07-23-2014, 03:49 PM
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Did you make sure the dowel rod didn't move on the top of the piston? Meaning the dowel rod stayed at the same angle. I'm thinking your measurements are off somehow according to this chart:




Stroke (in.) Bore (in.) Overbore (in.) Displacement (cu. in.)

3.590 4.360 stock 429


3.850 4.360 stock 460


3.850 4.390 0.030 466


3.850 4.400 0.040 468


3.850 4.420 0.060 473


3.850 4.440 0.080 477


4.140 4.360 stock 494


4.140 4.390 0.030 501


4.140 4.400 0.040 503


4.140 4.420 0.060 508


4.140 4.440 0.080 513


4.300 4.360 stock 514


4.300 4.390 0.030 521


4.300 4.400 0.040 523


4.300 4.420 0.060 528


4.300 4.440 0.080 533


4.500 4.360 stock 537


4.500 4.390 0.030 545


4.400 4.400 0.040 547


4.500 4.420 0.060 552


4.500 4.440 0.080 557
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Old 07-23-2014, 06:02 PM
AberrantGenus AberrantGenus is offline
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Quote:
Originally Posted by ATC Crazy View Post
Did you make sure the dowel rod didn't move on the top of the piston? Meaning the dowel rod stayed at the same angle. I'm thinking your measurements are off somehow according to this chart:




Stroke (in.) Bore (in.) Overbore (in.) Displacement (cu. in.)

3.590 4.360 stock 429


3.850 4.360 stock 460


3.850 4.390 0.030 466


3.850 4.400 0.040 468


3.850 4.420 0.060 473


3.850 4.440 0.080 477


4.140 4.360 stock 494


4.140 4.390 0.030 501


4.140 4.400 0.040 503


4.140 4.420 0.060 508


4.140 4.440 0.080 513


4.300 4.360 stock 514


4.300 4.390 0.030 521


4.300 4.400 0.040 523


4.300 4.420 0.060 528


4.300 4.440 0.080 533


4.500 4.360 stock 537


4.500 4.390 0.030 545


4.400 4.400 0.040 547


4.500 4.420 0.060 552


4.500 4.440 0.080 557
Yes. I made sure to keep it int the same place. I also tested it if it were in differnt spots. The only spot it made a differance was in the piston cup. Even then it was only like a 16th inch differance.
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  #15  
Old 07-23-2014, 08:57 PM
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What about the casting numbers on the intake?

Decoding Ford casting part numbers
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Old 07-23-2014, 08:57 PM
 
 
 
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