Late 460's differences and specifications?
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Junior User
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From: Gibsons Canada
Late 460's differences and specifications?
Hi All,
I'm primarily interested in the 460s used in motorhomes ( Super Duty chassis ), but any other information would be appreciated.
What was the last year for the 460?
Where can I get torque and HP specs for years 1992 to last production year inclusive?
What were differences between 1992 and last production year inclusive, ( specifications, parts )?
The '92 Super Duty chassis uses a secondary air pump and cat. I've read that the '93 and on does not. Were there any internal or other parts changes made to accomodate this?
Thanks,
Robert
I'm primarily interested in the 460s used in motorhomes ( Super Duty chassis ), but any other information would be appreciated.
What was the last year for the 460?
Where can I get torque and HP specs for years 1992 to last production year inclusive?
What were differences between 1992 and last production year inclusive, ( specifications, parts )?
The '92 Super Duty chassis uses a secondary air pump and cat. I've read that the '93 and on does not. Were there any internal or other parts changes made to accomodate this?
Thanks,
Robert
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Late 460's differences and specifications?
The 1992-1993 EFI460's ratings were
230 net horsepower@3,600rpm&390 lb.-ft. of torque@2,200rpm.
In 1994,the ratings increased to,
245 net horsepower@4,000rpm&400 lb.-ft. of torque@2,200rpm with an automatic transmission,
or
395 lb.-ft. of torque@2,400rpm with a manual.
The EFI460's rating in the F-450 was 255 net horsepower@4,000rpm&405 lb.-ft. of torque@2,400rpm.
In 1996-1997 EFI460 ratings,torque was listed at 400 lb.-ft.@2,400rpm.
In the 1997 F-Series HEAVY DUTY/SUPER DUTY brochure,it also lists California bound EFI460 engines as having
242 net horsepower@4,000rpm&394lb.-ft. of torque@2,200rpm.
All 1987-1995 EFI460s had Speed Density electronics,but some of the 1996-1997 engines got MAF.
Mostly California bound trucks.Many aftermarket companies offer stuff like headers,"chips",larger throttle bodies,K&N air filters,and better breathing after cat exhaust systems to get more power from the late-model EFI460 engines.
230 net horsepower@3,600rpm&390 lb.-ft. of torque@2,200rpm.
In 1994,the ratings increased to,
245 net horsepower@4,000rpm&400 lb.-ft. of torque@2,200rpm with an automatic transmission,
or
395 lb.-ft. of torque@2,400rpm with a manual.
The EFI460's rating in the F-450 was 255 net horsepower@4,000rpm&405 lb.-ft. of torque@2,400rpm.
In 1996-1997 EFI460 ratings,torque was listed at 400 lb.-ft.@2,400rpm.
In the 1997 F-Series HEAVY DUTY/SUPER DUTY brochure,it also lists California bound EFI460 engines as having
242 net horsepower@4,000rpm&394lb.-ft. of torque@2,200rpm.
All 1987-1995 EFI460s had Speed Density electronics,but some of the 1996-1997 engines got MAF.
Mostly California bound trucks.Many aftermarket companies offer stuff like headers,"chips",larger throttle bodies,K&N air filters,and better breathing after cat exhaust systems to get more power from the late-model EFI460 engines.
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Late 460's differences and specifications?
Robert, I remember seeing something in reference to Ford changing something having to do with the convertor,but I forget what it was.I remember it from a magazine article from years ago.I remember they were upgrading the exhaust of a EFI460 pickup,but I forget what magazine.You know what you could do is either contact a few of the aftermarket companies that offer exhaust parts for EFI460-powered trucks,or maybe find an answer in a '92,or'93 shop manual.I think it actually was in reference to the diameter size changing from 3" to 2 1/2".Sorry I couldn't help you better.
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Junior User
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From: Gibsons Canada
Late 460's differences and specifications?
In the sales information from Banks, the " Power Pack " kits differ in that the '92 and older use a single muffler, because of the stock cat. '93 and later use 2 mufflers, no cat. This is the only place I've seen this sort of information, but it got me to thinking. If that's the case, it might open up some possibilities to get around the visual emmisions inspection issue, assuming that you can still tune your engine to pass the actual emmissions.
Robert
Robert
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Late 460's differences and specifications?
FWIW, my Cal emissions '96 F-250 460 has a single 3" in and out catalytic and a 3" Y pipe to the engine. Not 2-1/2"...
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Posting Guru
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Late 460's differences and specifications?
Yeah,I probably had that backwards.I just remember what I read had something to do with the diameter changing.Sorry.
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I also have a 3 SISO Cat and the muffler WAS (it's a flowmaster now) 3" in, dual 1.5' outs. 
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Late 460's differences and specifications?
Hi,
I have a 1990 F250 4x4 with a 460. I seem to recall that the horsepower rating is 225@3800.
Does anyone know the changes the factory made to get 255hp in the later model F450s?
The extra 30 HP would come in handy towing my 8000lb trailer through the Sierras.
Also, the E4OD has been the weakest link in the drivetrain during the 12 years I've had this truck. I've always been cautious about trying to get more horsepower from the engine for that reason.
Did the E4OD change much between 1990 and 1997?
Thanks
Thanks
I have a 1990 F250 4x4 with a 460. I seem to recall that the horsepower rating is 225@3800.
Does anyone know the changes the factory made to get 255hp in the later model F450s?
The extra 30 HP would come in handy towing my 8000lb trailer through the Sierras.
Also, the E4OD has been the weakest link in the drivetrain during the 12 years I've had this truck. I've always been cautious about trying to get more horsepower from the engine for that reason.
Did the E4OD change much between 1990 and 1997?
Thanks
Thanks
Thread Starter
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Junior User
Joined: Mar 2002
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From: Gibsons Canada
Late 460's differences and specifications?
Ford costantly upgraded this transmission, both in the E4OD and 4R100 forms. The pre '95 E4OD's had centre support bearing problems, as well as some overdrive planetary and torque converter clutch problems. At rebuild time, upgraded parts can be installed. As far as I know, post '95 models are pretty tough, but as in any heavy application, a good auxiliary cooler and frequent oil changes are advised.
Robert
Robert
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Late 460's differences and specifications?
Right, mine blew at 25,000 in the middle of nowhere. Mind boggling expensive tow to the nearest dealer. Blown front pump, fixed under warranty.
Right at 50,000 blew again, out of warranty this time. $2200 repair bill by a local transmission shop. They did some internal upgrades at the time, rear bearing support or some such.
Less than 10,000 miles later the front seal backed out, dumped all the fluid in the driveway. Seal only this time.
At that point I put in a huge transmission cooler, two big electric fans, and a temperature gauge so I could keep an eye on things.
80,000 right now, with my fingers crossed.
This might be a good topic for another posting, but how much horsepower can be run through an E40D without an expensive repair bill following close behind?
Right at 50,000 blew again, out of warranty this time. $2200 repair bill by a local transmission shop. They did some internal upgrades at the time, rear bearing support or some such.
Less than 10,000 miles later the front seal backed out, dumped all the fluid in the driveway. Seal only this time.
At that point I put in a huge transmission cooler, two big electric fans, and a temperature gauge so I could keep an eye on things.
80,000 right now, with my fingers crossed.
This might be a good topic for another posting, but how much horsepower can be run through an E40D without an expensive repair bill following close behind?
Thread Starter
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Junior User
Joined: Mar 2002
Posts: 59
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From: Gibsons Canada
Late 460's differences and specifications?
Sorry, I can't answer that question. My experience is limited to custom controls with close to stock power levels. I know they are used with Hi Perf Lightnings and Power Stroke diesels. They can't all blow up. Try a post in the transmission section. I'm curious to see what comes up too.
Robert
Robert
Senior User
Joined: Oct 2002
Posts: 441
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From: Montana
Late 460's differences and specifications?
There is a place called Brians Truck Shop that builds E4OD's to withstand Powerstrokes cranking out huge amounts of torque. I have seen the adds on TheDieseStop.com web site. The people that have them on that forum seem very impressed with them. So they can be made to hold up to lots of power and abuse.