Metric Conversion

[ThunderBubba]

I know I saw a conversion to translate liters into cc's or if memory serves me bbl. Does anyone out there remember what the conversion formulas? Like what the 3.9 would be in cc/bbl or my what my 66' bird with a 428 would be in liters.

[Blue Heaven]

ThunderBubba,
Years ago when I rebuilt the 455 in my Trans Am, I bored it out .030 over and wanted to get the new displacement in litre measurement. The shop that did the work calculated it, and I seem to remember that there are 60.6 cu. in. to the litre, so your 428 would be a 7.1 L. Hope that helps!

[brdman2]

I think I have a spreadsheet at work with the actual formulas, but Blue Heaven's 60.6 ci/L seems pretty close. I'm aware of a few popular engine displacements and their approximate metric/imperial equivalent. From Ford's 7-liter/428 cars of '67 or so, to Trans Am's 6.6L/400, to Ford's 302 ci/5.0L and the Thunderbird 3.8L/232 ci V-6. The current 3.9L V-8 works out to about 237 ci. and the 352 in my '60 works out to about 5.7L.

BTW, 1 cc = 1 liter (they are both metric measurements), so I assume when you wanted to know the equivalent of your 3.9L you wanted the results in the imperial (our American system) ci or cubic inches. And bbl refers to the number of barrels or venturis on the old carburetors (remember those antiques?), so has nothing to do with engine displacement. (I'm not trying to be a Smart A__ - we old-timers knew what you meant. Just trying not to confuse some of the new kids who grew up on cc's & L's in their cars. :wink:)

Enjoy your birds, in any "language"!

Edited due to fumble fingers or ?? 1,000 cc = 1 liter - thanks Terry!

[Terry]

1000cc=1L for the metricly challenged, LOL!
also,
1cubic inch=16.387cc or .016387 L
so to work the other way CID X .016387 gives the displacement in Litres or liters. Just over 61.02 CI per L Great math exercise, thunderbubba. I can't believe I can still do this stuff!!!! Gee I hope it's right. TEACHER!

[VicRattlehead]

Originally posted by brdman2
From Ford's 7-liter/428 cars of '67 or so, to Trans Am's 6.6L/400, to Ford's 302 ci/5.0L and the Thunderbird 3.8L/232 ci V-6. The current 3.9L V-8 works out to about 237 ci. and the 352 in my '60 works out to about 5.7L.


fords 302 actually equals a 4.9 they rounded it up to 5.0 for the stangs to compete against the 5.0 305 from cheby

281 = 4.6

[Red]

That is why I prefer Metric beer to SAE beer. Multiply by 9/5 and add 32.

As I recall, my first Ford flathead was a 3.9L - what a difference a few overhead valves make.

[ThunderBubba]

Thanks Guys. So our 3.9's are a 237. Ain't technology great. Remember when the Mustang came out with a 289? And we thought that was bad. Here we have smaller displacement and way more kick-butt power.
And about that getting old and losing memory thing. All I can say is --Of all the things I miss, I miss my mind the most.:bawl: :nuts:

[Blue Heaven]

Actually, our 3.9L is a 241 cu. in. according to Ford's publications.