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1 litre = 61.0237441 cubic inch
1 cubic inch = 16.387064 cc. there is 1000 cc per litre.
manufacturers round the number up or down for marketing reasons
 

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Not to be symantical, but it should be about a 302. The conversions I've seen are 61 CI per liter. Making a 5.0 a 305. The Ford 302 cubic inch motor, converted to liters is really a 4.9508196 liter engine. Ford found it wasn't cost effective to make the 4.9508196 badge, so they rounded up...

:: :: :: ::
 

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Of course, a 302 isn't REALLY a 302 either - it's a 301.59289474462015008 cubic inches! Since there's 61.024 cubic inches to a liter, a 5.0 is actually a 4.94220134282610366544310435238595 Liter !!! :: :: ::

(For the "Hair-Splitters" in the audience!) ::
 

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Anyone know the bore and stroke for a modern 5.0? The current 4.6 that Ford puts in the Mustangs rounds up to a 281 cubic inch engine.

John Harvey
 

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The engine spec pages list the bore and stroke for Ford's modern 5.0 liter as the identical 4.000 inches and 3.000 inches as Ford's "old" 302. So a 5.0 is as close to actually being 302 cubic inches as a 302 is.

John Harvey
 

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My calculator doesn't go out that far, and the Mustang fender isn't big enough for:

4.94220134282610366544310435238595

But it would be kinda cool! :: :: ::
 

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The 5.0 IS a 302 with a different name.

Ford started calling them 5.0's in, I think, 1978 with the King Cobra. In 1979 the Mustang got the famous 5.0 emblems on the front fenders.
 

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I refuse to measure the size of an engine on the same terms as a softdrink.I just call mine a 302. :)
 

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It's all about how many significant figures you work out to...
 

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I think it was Car & Driver that had fits calling the 4.94L
a 5.0L because it doesn't round up to 5.0.
301.59 does round up to 302.

However, Ford already had an engine 'called' the 4.9 (namely the 300 six) so the 4.9 moniker was already taken within the corporate lineup. When you go to the parts store you ask for the part via the name on the engine. With 4.9 asigned to another engine, Ford called it a 5.0.
We should all remember that it's the name of the engine (special, crusader, hemi), not a technical designation.

On another note, I've heard it called a Five-Oh.
That's incorrect. Oh (O) is a letter of the alphabet.
It's a Five-Zero (or better yet Five-point-Zero).
;)
 

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Here's a nifty conversion tool for whatever you desire.
 

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I think the 351 is bigger than 302, I'm almost positive. Someone will correct me if I'm wrong. ::
 

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On another note, I've heard it called a Five-Oh.
That's incorrect. Oh (O) is a letter of the alphabet.
It's a Five-Zero (or better yet Five-point-Zero).
The letter "o" as defined by the Modern Language Association is acceptable for use as a substitute in many dialects of International English (what we speak here in America) for the numerical character "0". Alphanumerics in the digital age (21st century here, people) are very common and the vernacular dictates what is correct and incorrect.

If the M.L.A. says the numerical "0" can be substituted for the letter "o" then so be it, since everyone in Academia uses the M.L.A. as a benchmark for teaching and learning. I say it's credible.
 
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