Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 02-25-2004, 11:54 PM
CPerry's Avatar
CPerry CPerry is offline
Senior User
 
Join Date: Jun 2003
Location: Hawaii
Posts: 434
CPerry is starting off with a positive reputation.
difference between 4.6 and 5.4

I know they have the same bore, are the cylinders taller on the 5.4 or do they share the same cylinders?
__________________
1999 F150 XLT 4x4 super-cab,
4.6L auto tow package
Flowmaster 50 series,
Superchip 1715 Microtuner
Cold air intake
4.10 Gears LS
2 inch Lift
Bilstein shocks
Reply With Quote
  #2  
Old 02-26-2004, 05:00 AM
krunker krunker is offline
Senior User
 
Join Date: Feb 2004
Location: LaGrande, OR
Posts: 146
krunker is starting off with a positive reputation.
Granted I'm no expert, but assuming the bore is the same that means the stroke would have to be longer meaning that the 5.4 would have longer connecting rods and a larger crank.
__________________
1997 F150 4X4 4.6 Std.

List Mod's in Gallery
FTE
Reply With Quote
  #3  
Old 02-26-2004, 02:20 PM
mantta's Avatar
mantta mantta is offline
Posting Guru
 
Join Date: Feb 2001
Location: Keweenaw Bay, MI
Posts: 1,721
mantta is gaining momentum as a positive member of FTE.
Krunker, don't you mean shorter connecting rods and a longer stroke on the crank?
__________________
ENCS(SS), (SW), USN RET (E-8)
Keweenaw Bay, MI
U.S. Navy (Submarine Service) 60-80
2010 Ford F-150 4WD Lariat Ext Cab
1999 Lincoln Town Car Ecec Series
1930 Model "A" Coupe
Reply With Quote
  #4  
Old 02-26-2004, 02:59 PM
CPerry's Avatar
CPerry CPerry is offline
Senior User
 
Join Date: Jun 2003
Location: Hawaii
Posts: 434
CPerry is starting off with a positive reputation.
I realize it would need a longer stroke but do they share the same cylinders or are the 5.4's taller?
__________________
1999 F150 XLT 4x4 super-cab,
4.6L auto tow package
Flowmaster 50 series,
Superchip 1715 Microtuner
Cold air intake
4.10 Gears LS
2 inch Lift
Bilstein shocks
Reply With Quote
  #5  
Old 02-26-2004, 06:33 PM
krunker krunker is offline
Senior User
 
Join Date: Feb 2004
Location: LaGrande, OR
Posts: 146
krunker is starting off with a positive reputation.
Quote:
Originally posted by mantta
Krunker, don't you mean shorter connecting rods and a longer stroke on the crank?
Ya, that sounds more like it, although I think the 5.4 is also a little taller and wider. I have the manual for 1997 and newer F-150's, I'll consult it and report back. Also, when you ask if they share the same cylinders, do you actually mean pistons or the actual liners in the block?

Last edited by krunker; 02-26-2004 at 06:37 PM.
Reply With Quote
  #6  
Old 02-26-2004, 10:30 PM
LxMan1's Avatar
LxMan1 LxMan1 is offline
Moderator
 
Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,266
LxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant futureLxMan1 has a brilliant future
The 5.4L block is taller to accomodate the longer stroke. They have the same bore.
The stroke on the 5.4L is 4.14". The block is taller and wider so the intakes will not interchange. The bolt on accesories in the front will interchange. The heads are the same as well as the camshafts.
If you are looking to upgrade from a 4.6L to a 5.4L, check out Ford's new 5.0L Modular engine with a redesigned block for a larger bore with 4.6L stroke.
Jimmy
__________________
Jimmy- FTE Moderator

88 5.0 LX Mustang
63 F100 351W/C6

Reply With Quote
Old 02-26-2004, 10:30 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cylinder 6 makthenif 1997 - 2003 F150 4 04-19-2014 06:33 PM
5.4 cylinder Scubaman154 1997 - 2003 F150 2 08-29-2012 12:55 PM
5.4 vs 6.8 (comparing reliability only) kurthb Modular V10 (6.8l) 16 04-06-2006 07:58 AM
firing order for 5.4 rowdie-stang 1997 - 2003 F150 3 08-09-2005 08:59 PM
1999 F-150 5.4 Cylinder head problem Flash 1997 - 2003 F150 3 02-19-2002 10:40 AM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)

Tags
46, 50, 54, 62, block, differance, difference, difrence, engines, f150, ford, fords, interchange, modular, parts

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 04:01 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup