its a 5.8!

aimzes · 04-09-2005, 08:07 PM

a 351 is a 5.8 litre right? its 5765cc or something but rounded up its 5.8. over the years ive seen write ups in mags where they go "the awesome power of the 5.7 in the ford" like for instance an article on a cobra which in the pics had 5.8 badges the writer put it down as a 5.7.

and i let it go for years. it was usually online on some yuppy-a*sed site (carpoint...etc.) so i though wtf would they know so i didnt really give a s**t. but recently i read it in (i think) performance ford mag... either that or street fords mag.

so wtf. do you refer to it as a 5.7 or a 5.8?

Dave_au · 04-09-2005, 08:10 PM

Excuse my ignorance, but does it err.... matter?

parawolf · 04-09-2005, 08:10 PM

i refer to it as 351....

aimzes · 04-09-2005, 08:19 PM

Quote:

Excuse my ignorance, but does it err.... matter?

no, not really. but it annoys me. and id like to know what others think or refer to it as... so either answer the question or dont reply. i really dont see why it was nessesary for you to ask that. of corse, you are entitled to ask it... i guess.

RED_EL_XR8 · 04-09-2005, 08:24 PM

Now can we all play nice ladies. we are all entiled to opinions aren't we?

HOON69 · 04-09-2005, 08:17 PM

closer to 5.8 then a 5.7 so its gotta be 5.8 aint it.

i've always regarded them as a 5.8 anyways.

**Peuty** · 04-09-2005, 08:18 PM

Yeah, always a 5.8. But to save confusion, a 351.

LUXO_8 · 04-09-2005, 08:28 PM

the other one that i dont like is when the 5.0 in the EB - AU is refered as a 4.9

aimzes · 04-09-2005, 08:31 PM

Quote:

the other one that i dont like is when the 5.0 in the EB - AU is refered as a 4.9

lol. id just call it a 5.0.

parawolf · 04-09-2005, 08:31 PM

Quote:

Originally Posted by MADNC_8

the other one that i dont like is when the 5.0 in the EB - AU is refered as a 4.9

See I call the AU a 5.0 regardless... But hey, 302ci or 308ci... who cares

OzJavelin · 04-09-2005, 08:37 PM

I think Fords best was when they frigged around with displacement for 427/428/429s that they were selling concurrently! Chev did a good one with the smogger 402 big-block .. called it a 396 like the good
ole MarkIV!!

Steffo · 04-09-2005, 08:35 PM

99% of the time... its rounded up as follows...

5050cc - 5149cc = 5.1 litres

4950cc - 5049cc = 5.0 litres

Ford's 302W is one exception to this rule, being 4942cc, its actually a 4.9litre V8.

Far as I know, the 351 is 5756cc, which makes it a 5.8 litre.

parawolf · 04-09-2005, 08:50 PM

Quote:

Originally Posted by Steffo

99% of the time... its rounded up as follows...

5050cc - 5149cc = 5.1 litres

4950cc - 5049cc = 5.0 litres

Ford's 302W is one exception to this rule, being 4942cc, its actually a 4.9litre V8.

Far as I know, the 351 is 5756cc, which makes it a 5.8 litre.

Thats standard mathematics.... and it shouldn't be as "Far as i know" for a 351ci being 5751.859464cc. cubic measurements means that 1ci = 1" x 1" x 1" = 2.54cm x 2.54cm x 2.54cm. Therefore 1ci = ~16.387cc. Therefore 351ci = 351 x 16.387 = 5751.8ci. Technically speaking, because my smallest number of significant digits is 3 (in the 351) then I can only really say 351 x 16.387 = 5.75l (or 5.75 cubic decimetres), which still rounds up to 5.8L, however as said before we are technically right in calling it 5.75L.

dogbreath_48 · 04-09-2005, 09:37 PM

Quote:

Originally Posted by parawolf

Thats standard mathematics.... and it shouldn't be as "Far as i know" for a 351ci being 5751.859464cc. cubic measurements means that 1ci = 1" x 1" x 1" = 2.54cm x 2.54cm x 2.54cm. Therefore 1ci = ~16.387cc. Therefore 351ci = 351 x 16.387 = 5751.8ci. Technically speaking, because my smallest number of significant digits is 3 (in the 351) then I can only really say 351 x 16.387 = 5.75l (or 5.75 cubic decimetres), which still rounds up to 5.8L, however as said before we are technically right in calling it 5.75L.

Of course we're presuming these engines displace exactly 351.00/302.00ci (i^3) So some published cm^3 measurments may just have been measures more accurately.

-Stu

parawolf · 04-09-2005, 09:41 PM

Quote:

Originally Posted by dogbreath_48

Of course we're presuming these engines displace exactly 351.00/302.00ci (i^3) So some published cm^3 measurments may just have been measures more accurately.

-Stu

Exactly

:

xdclevo · 04-09-2005, 10:41 PM

Cool. I ran a 12.47, so its really a 12.00. And my mate did 11.77, so he also did a 12. We are equal. hahaha

:

dogbreath_48 · 05-09-2005, 09:50 AM

Quote:

Originally Posted by parawolf

Exactly

:

...ohh yeah, shoulda read your post first :P

-Stu

Steffo · 05-09-2005, 11:29 AM

Quote:

Originally Posted by dogbreath_48

Of course we're presuming these engines displace exactly 351.00/302.00ci (i^3) So some published cm^3 measurments may just have been measures more accurately.

-Stu

Ford's 351 is actually 352.2 ci (4.002" bore and 3.500" stroke)

352.2 ci is 5776.08cc, which is 5.8 litres. :Reverend:

parawolf · 05-09-2005, 12:08 PM

Quote:

Originally Posted by Steffo

Ford's 351 is actually 352.2 ci (4.002" bore and 3.500" stroke)

352.2 ci is 5776.08cc, which is 5.8 litres. :Reverend:

5776cc or didn't you read my above year 9 maths discussion? 4 signifcant digits is the least accurate number you have.

:

Pearly · 04-09-2005, 10:57 PM

Quote:

Originally Posted by parawolf

Thats standard mathematics.... and it shouldn't be as "Far as i know" for a 351ci being 5751.859464cc. cubic measurements means that 1ci = 1" x 1" x 1" = 2.54cm x 2.54cm x 2.54cm. Therefore 1ci = ~16.387cc. Therefore 351ci = 351 x 16.387 = 5751.8ci. Technically speaking, because my smallest number of significant digits is 3 (in the 351) then I can only really say 351 x 16.387 = 5.75l (or 5.75 cubic decimetres), which still rounds up to 5.8L, however as said before we are technically right in calling it 5.75L.

Ah, see, I knew I wasn't ****ing money away when I bought those custom 5.75L badges for my Fairlane.

NAK302 · 04-09-2005, 08:51 PM

i have only seen 5.8 and 4.9 badges on fords with clevelands, that'll do for me.

gtfpv · 04-09-2005, 10:48 PM

ford has it right . 5.8 - 4.9
NOW WHAT ABOUT 4.1 - 3.9 - 4.0 . ONCE AGAIN THESE ENGINES WERE ALL AS SPECIFIED.

GreenMachine · 05-09-2005, 12:24 PM

There's an old story about a lawyer, an economist and a statistician who go hunting. They come across a massive deer, standing in a clearing. The lawyer aims, shoots, and the bullet kicks up dust 3 feet to the right of the deer. Quick as a flash, the economist aims, shoots, and kicks up dust 3 feet to the left of the deer.

The statistician throws his hat up in the air and screams "we hit it! we hit it!"

This post only has a very tenuous link to the topic at hand.