Firefox

So the vehicle's VIN will show the build date of the engine ??

thanks

techrep

iTrader: (1)

I'm pretty sure it will just show you the build date of the truck...which will not help you unless the build date of your truck is well into 08, in which case you would have the updated motor.

techrep

iTrader: (1)

I just entered my VIN in there and it showed truck build date...mine was built 04/18/08 and has the re-designed heads..

VTX1800N1

If it were built before the engine update date, he would know.

techrep

iTrader: (1)

Yep... just don't know how many old motors were stuck into early 08 trucks..

Baron00

Mine says a build date of 10/1/07, guess I have the old motor?

Primary Features
Build Date: 10.01.2007
Vehicle Line: F150
Body Style: Double Cab (3/4 Door)
Version: 150
Engine: 5.4L 3V V8
Transmission: 4 Speed Automatic 4R75E Livonia
Drive: LHD 4WD (PTD)
Axle Ratio: 3.73
Emission: With 49 State/Non Green State Req
Air Conditioning: Automatic Air Conditioning
Territory: (+)"USA"
Paint: Dark Blue Pearl

Firefox

That's the question I have. I figure mid 08 and on is good.

But if the spark plugs were changed, how do they know which is needed ???

Thanks all

techrep

iTrader: (1)

Look at the color of your COP boot's... Brown boot's will be the up-dated plugs SP509's ... black boot's will be the old 2 piece plug SP515 I believe... I just replaced my plugs/boot's and springs last Friday...

Sailor_USN

I followed the link and entered my VIN. I found out my 2007 Lariat was built in 2006 and I've never had any issues with it. What did took me by surprise was that my truck was built on my birthday! I was exactly 16 when they were building it hahaha craziness