vin dosent match engine

JJ98 · #1 (**permalink**) 06-21-2009, 10:17 PM

hi the othere day i was changeing my ac compreser and noticed that my block said it was a 5.4 but the vin said its a 4.6 and the sticker on the vavle cover said its also a 4.6 so whats the deal

ExpySport · #2 (**permalink**) 06-26-2009, 11:05 PM

What vehicle? Are you the original owner? Any ideas if the engine was replaced at any time in the vehicle's life?

JJ98 · #3 (**permalink**) 07-02-2009, 04:01 AM

no iam the second and from what i can tell it mite have been rebuilt onces
not to sure

2000Ford2000 · #4 (**permalink**) 07-02-2009, 11:37 AM

Editing what I said as I was wrong.

JJ98 · #5 (**permalink**) 07-03-2009, 04:13 PM

the othere thing is its a f150 2wdrrive the tranny 4r70w the vin says 4.6 the engine sticker says 4.6 but the stuff on the right side says it a 5.4 also the vale covers are 14 bolt count

LxMan1 · #6 (**permalink**) 07-03-2009, 09:57 PM

14bolt means Windsor. 11 Bolt is Romeo.

hcbph · #7 (**permalink**) 07-13-2009, 09:25 AM

Quote:

Originally Posted by JJ98

hi the othere day i was changeing my ac compreser and noticed that my block said it was a 5.4 but the vin said its a 4.6 and the sticker on the vavle cover said its also a 4.6 so whats the deal

Can't help you on this but just to show what can happen, at one time I had a 79 Olds Cutlas with a 260 ci diesel. Cylinders went bad and the short block was replaced under warranty. They put in a 350 ci diesel short block, using as many original parts as possible. I don't know how many pieces interchange between the 4.6 and 5.4 but if there are any casting numbers on the block, heads etc they might give a lead on what you have.

Good luck

Paul

97ExpGuy · #8 (**permalink**) 07-24-2009, 04:53 PM

I thought the only difference in the 4.6/5.4 was the longer piston stroke that gave it the more cubic inches. I'm no expert but I wonder if someone slapped the wrong sticker on at the factory. You never know...

JJ98 · #9 (**permalink**) 07-25-2009, 04:04 AM

well its could happen not to worryed iam going to replace it some time soon the head gasket on the left and right banks leak oil

rplatt56 · #10 (**permalink**) 07-25-2009, 08:53 PM

replacing motor because of head gasket leak? And yes the 5.4 and 4.6 share the same block and other parts. The 5.4 has bigger heads to allow for a longer stroke.

t lindemann · #11 (**permalink**) 07-26-2009, 03:42 PM

4.6 and 5.4 share most of the enternal parts. the blocks are not the same, they are the same bore but the 5.4 blocks deck is a little taller cause the 5.4 has more stroke. which puts the intake spacing further apart, which wont allow a 4.6 intake to go on a 5.4. pretty sure cranks and pistons are the same , rods are longer on the 5.4.

JJ98 · #12 (**permalink**) 08-03-2009, 03:57 AM

thanks for the info replacing engine for taping and knocking 256000 on it was a farm truck also leaking from crank sral and oil pan also