There's a couple different formulas, but the one I was taught and use is:

Bore x Bore x Stroke x # of cylinders x .785

So, using an '05 5.4 liter 3V as an example, we've got a 3.55" bore and a 4.17" stroke.

3.55 x 3.55 = 12.6025 x 4.17 = 52.552425 x 8 = 420.4194 x .785 = 330.029229

There's another formula for calculating displacement, but I forgot it.

 

A 5.4 is, well, a 5.4.
Almost every place in the world is metric except the United States. It's sort of like me asking how hot is 30 Celsius? I grew up with the standard system, 25 years ago I would be converting the number in my head to Fahrenheit but now I don't have to. I just know 30C is 30C (btw, thats 86F). 25 years from now even U.S. citizens will not be asking what a 5.4 is.

I was very stubborn with the metric system as I converted when I was in my last two years of high school. However, once I found out the advantages of a base 10 system, the advantages were clear. I was also surprised to find out there are several metric fastners on my new truck (rear door speaker change)

Sorry for the smart a$$ answer, I'm Canadian

 

WOW! And by the picture, your just a little bitty kid! I am very impressed. And you have already gotten out of high school?

By the looks of your picture, I think we Yanks have severely underestimated you Canadians!

By the by, I agree with you. As a German car fan in the early sixties, I learned the metric system and have always preferred it to the English system.

Try converting feet and inches when the surveyor or engineer gives you 10.357 feet as a calc.!

 

so a 460 is a 7.5. GAS drinking SOBS

 

is the 5.4 (330 cid) the same as the old 330 engines? a friend of mine has one in an early 70's dumptruck.

 

Nope...not the same at all. Modular engine family started in 1991...5.4's in 1996.

 

I've heard alot of "old school" men talking about their Ford has "that new 302, or that new 351" causes alot of confusion

For anyone that doesn't know, a modular motor is one that has 2 overhead camshafts instead of 1 in the block with pushrods. (some may not understand that)

Ford made a few of these in the 60's on a 427. They put them in some Fairlane or something I think.

 

I thought the 5.4 was 329 CID, but 330 is close enough. FWIW most engines are not what their displacements state, but rather close to it.

 

Actually a modular motor can have only one camshaft to, Hince the SOHC 4.6l. But there are definitly no pushrods in there

 

The conversion factor from liters to cu. in. is 61.0237.

For example to find cu. in. of a 5.4L motor:

5.4 L*61.0237 cuin/L = 329.528 cuin

Now whether you want to call it a 329 or a 330 is up to you!

02sport, I believe 3valve is refering to the SOHC engine where each head has it's own camshaft, therefore two overhead cams.

 

to get technical
1 liter = 61.0237438 cubic inch

 

What about the DOHC 4.6 and 5.4?

 

"Modular" is Ford's terminology for using basically the same engine, plus or minus different recriprocating assemblies and valvetrains. This includes all 4.6 and 5.4 liter V8s, and the 6.8 liter V10, whether it's SOHC or DOHC, or 2, 3, or 4 valves per cylinder.

 

My 04 5.4 3v has one camshaft, or dose it... I m sure thier are two timming chains for each bank of cylinders.....302 and 351-400 ford have camshaft's, pistons, and heads that can be swapped out/interchanged Modular is not a new term...is the modular engine a reinvented ford Flat head? - the V.V Timing and electrionic throttle control...

 

Thought so, thanks.