What block is the 4.6L built from?

5.0L - 302 CI
5.8L - 351 CI
4.6L - 281 CI
5.4L - ? dont know

They are unique brand new design blocks not built off the old ford small blocks. I.E. it isnt a 302 with 4 valve heads. They are 281 cubic inch for the 4.6 and 330 cubic inches for the 5.4 liter. They are based on the "Modular" block not off any previous ford design.

The 351 and 302 were "windsor" based while you could also get the 351 "cleveland" which has a completely different block than the 351 "windsor".

There is no parts sharing between a windsor and the modular.

Liters are just another way to measure size instead of using cubic inches. In a world converting to metric the proper way to describe an engine is in liters but the standard way is in cubic inches.

The 5 liter mustang or 5.0 is a size in metric actually standing for 5 liters. The size in standard is 302 cubic inches. Cubis inches is also slightly more accurate as you can have 2 engines of different saize with the same liter size due to rounding. Take the 351 ford and the 360 dodge, both are considered 5.8 liter but one is obviously 9 cubis inches bigger. this happens because people round up. every 1 liter of engine size equals 1000 CC (Cubic Centimeters) so saying an engine is a 5.8 means it is 5800 CC. But auomakets will call anything from 5750-5849 a 5.8 liter engine.

The 351 displaces 5.8 liters.
A 350 chevy is a 5.7
The vipers from 1992-2002 were 8.0 liters or 488 cubic inches.

Also the 351 windsor was never made in a 4 valve configuration.

UDTBadkarma said:

I'm a bit confused on which blocks the 4.6L and 5.0L mustangs are made from.

The 2V 5.0L mustang is built from a 302 block, corect?
And the 4V 5.0L mustang is a 351 block???

What are the 4.6L 2v and 4v blocks built off of?

Correct me, i was debating this with someone, and now i'm all messed up

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the 5.0L and the 4.6L are completely unrelated. the 5.0L 302 and the 5.8L 351 are related and the 4.6L 281 and the 5.4L 331 are related.

04DarkShadowGT said:

5.0L - 302 CI
5.8L - 351 CI
4.6L - 281 CI
5.4L - ? dont know

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oh come on guys... math skills are pretty useful you know...

5.4L = 'bout 326 CI

5.4 = 331 if I'm not mistaken.....

The 2V and 4V 281's use their own blocks. Specifically made by Romeo and/or Windsor dpending on year

The 289 4V was just a 289 w/ 4V heads if I'm not mistaken....

-Will

drexebo said:

oh come on guys... math skills are pretty useful you know...

5.4L = 'bout 326 CI

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Its actually 330 cubic inches but there is nothing wrong with your math liters isnt exact. Ford.com lists the specs
http://www.fordvehicles.com/Trucks/f150/features/specperformance/

TARZAN said:

5.4 = 331 if I'm not mistaken.....

The 2V and 4V 281's use their own blocks. Specifically made by Romeo and/or Windsor dpending on year

The 289 4V was just a 289 w/ 4V heads if I'm not mistaken....

-Will

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the old 289 4V or any engine in an older car with a 4v stood for 4 venturi, meaning a 4 barrel carb. Ford never made a 4 valve small block for passenger cars before the 4.6.

Chebby's 305 and Ford's 302 were both called a 5.0

I was only 1 damn liter off, not too bad eh

-Will

They either made a 289 or a 427 4V, I was almost sure of it, we had a big discussion on it awhile back.......

I could be wrong though, wouldn't be the first time, won't be the last....

-Will

TARZAN said:

They either made a 289 or a 427 4V, I was almost sure of it, we had a big discussion on it awhile back.......

I could be wrong though, wouldn't be the first time, won't be the last....

-Will

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there was a 427 sohc but it was still a 2 valve but it made great horsepower and was the only threat to the chrysler hemi on the nascar tracks.

technically the ford 302 was a 4.95 liter they simpy rounded it up to 5.0L

the only true 5.0 was the GM 305 and 307

cap42 said:

technically the ford 302 was a 4.95 liter they simpy rounded it up to 5.0L

the only true 5.0 was the GM 305 and 307

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general Motors also built a 302 for use in the 67-69 camaros with the z28 option. It was a 327 with a 283 crank in it. They were screaming little engines.

TARZAN said:

They either made a 289 or a 427 4V, I was almost sure of it, we had a big discussion on it awhile back.......

I could be wrong though, wouldn't be the first time, won't be the last....

-Will

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back then, 4V ment the carburator had 4 valves

cap42 said:

technically the ford 302 was a 4.95 liter they simpy rounded it up to 5.0L

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i think it was actually 4.91L. but anyway, the reason the bumped it up to an advertised 5.0L was because they already had a 4.9L, the 300ci I6. just incase anyone cared.

but you will notice an extreme difference between a 305 and a 302

sixtyfive said:

but you will notice an extreme difference between a 305 and a 302

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the 302 positively OWNZ the 305. not even Chevy guys can deny that. that's why chevy went to the 5.7L in the 90's. they couln't compete with the 302 with similar displacement.