400+ HP from 351W?
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400+ HP from 351W?
I own a '97 F250 HD with a 351/E4OD. Is it realistic to want about 400HP+ from this engine and still expect reasonable drivability/reliability. If so what's the best approach, supercharging, stroking...? Any thoughts very welcome.
Tuned
Joined: Jul 2001
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From: Deatsville, AL
400+ HP from 351W?
Usually anything over one horsepower per cubic inch is pushing drivability. Low end power goes away. Reliablity starts to be questionable also. For the street, cruising and highway driving and not towing, 400 horses is probably fine from your 351M.
If your going to tow I'd look at building a 400 which will bolt right in and which you could assemble while your drive your 351M.
But I'm a conservative old f*$t and some the others may have other ideas.
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
If your going to tow I'd look at building a 400 which will bolt right in and which you could assemble while your drive your 351M.
But I'm a conservative old f*$t and some the others may have other ideas.
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
Tuned
Joined: Jul 2001
Posts: 430
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From: Deatsville, AL
400+ HP from 351W?
Damn, you wrote 351W and I read 351M. So stroke a spare 351W and drive your truck while you build your new engine.
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
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400+ HP from 351W?
Hot Rod magazine did an Article called "The 351W Ford Should Have Built" I found it at Barnes and Noble in a book. The Best of Hod Rod. Volume 6, High Performance Small Block Ford Engines.
Get this book! ($18.95)
It has at detailed cookbook recepe for building a 400HP, 450ftlbs tq 351W that runs a factory computer and 87 octane. Read the article and then tell me it can't be done. Like I said, it's really worth your time. All in all, your looking at $3,000 to $3,800 if you don't have the block. If you do, it'll be cheaper.
Daywalker
92' F-250HD 351 4x4 xlt 4.10 ZF 5speed supercab longbed
Get this book! ($18.95)
It has at detailed cookbook recepe for building a 400HP, 450ftlbs tq 351W that runs a factory computer and 87 octane. Read the article and then tell me it can't be done. Like I said, it's really worth your time. All in all, your looking at $3,000 to $3,800 if you don't have the block. If you do, it'll be cheaper.
Daywalker
92' F-250HD 351 4x4 xlt 4.10 ZF 5speed supercab longbed
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400+ HP from 351W?
Excellent advice! Thanks for your time/knowledge gents, been a pleasure.
If any of you were going to do it would you start with a 460 instead or is the 351W just overlooked? I'm assuming the 460 requires different motor mounts but is it a fairly simple swap?
Is this a can of worms better left unopened?
If any of you were going to do it would you start with a 460 instead or is the 351W just overlooked? I'm assuming the 460 requires different motor mounts but is it a fairly simple swap?
Is this a can of worms better left unopened?
Tuned
Joined: Jul 2001
Posts: 430
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From: Deatsville, AL
400+ HP from 351W?
The switch to a 460 will require a lot of changes from transmission and exhaust header pipes, to every bracket for the AC, power steering, etc. Do able but a lot of parts chasing unless you have a donor vehicle.
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
Bob
'66 7 Litre, top loader, 3.25 Traction-lock, Sidewinder Intake, SCJ Exhaust
'88 F150 LWB 4x2, XLT Lariat, 302, 5 speed, 3.08
'99 Ranger, 4x2, 3.0, 5 speed, 3.73 posi
Senior User
Joined: Feb 2000
Posts: 208
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400+ HP from 351W?
daywalker,
That book sounds like a good one. Any other cool builds described in it?
That book sounds like a good one. Any other cool builds described in it?
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