Boss 302 vs 5.0 difference

[gs462]

Ive searched several sites and cant find the answer im looking for. I KNOW
the boss internals are forged and the intake is different. But what are the other differences. cylinder heads? cams? Can anyone help?

 

[Jedisalami]

yeah

 

[Squamishcoyote]

Better heads, cams, valves, I think the valve springs are different aswell. Also they are lighter

 

[gs462]

Are the heads a different casting #? or is there port work done? Both intake AND exhaust cams different?

 

[vortecd]

$10,000

 

[seank]

Google "coyote vs roadrunner engine"

2011 Ford Mustang 302 - Inside The Boss - 5.0 Mustang Magazine

 

[gs462]

$10,000

Got a rocket scientist here eh.

 

[gs462]

Google "coyote vs roadrunner engine"

2011 Ford Mustang 302 - Inside The Boss - 5.0 Mustang Magazine

Thanks you for an intelligent answer Sean

 

[gs462]

So far from the read the HEADS, valves springs and EXHAUST cams are the main differences.

 

[Jimmysidecarr]

Are the heads a different casting #? or is there port work done? Both intake AND exhaust cams different?

Wow! I did not know this until just now.

"Cast from a different aluminum alloy and changed in almost every respect, the Boss 302 cylinder head is definitely a Coyote descendent, but still its own animal. While it still passes as a bolt-on replacement for a Coyote head, the finished Boss casting is stronger and worth about 10 hp more than a Coyote, thanks in part to CNC porting and a larger exhaust valve."

Read more: http://www.mustang50magazine.com/te...1_ford_mustang_302/viewall.html#ixzz2CpFctiUy

 

[slagburn]

The crank I believe is the same, might be different just for the balance factor. The pistons are Mahle forged, the rods are still a powdered metal rod but a different, stronger alloy.
The heads are made of a different aluminum alloy and CNC ported. The valves are hollow intake, sodium filled exhaust and the exhaust valves are 1 mm larger at the seat. Same intake camshaft, the exhaust has the same duration but 1mm more lift. Different valve springs too.

 

[seank]

I believe the castings are the same but they are definitely CNC ported in addition to the other differences mentioned.

Wrong. Different casting. Take the 15 minutes to read the article I linked to that highlights every difference in detail.

Key differences:

Intake mani
Heads
Exhaust cams
Valves
Valve springs
Pistons
Con rod material
Crank bearing material
No oil squirters
Oil cooler
Flywheel
Dampers
Springs
Swaybars
Differential

 

[gs462]

Wrong. Different casting. Take the 15 minutes to read the article I linked to that highlights every difference in detail.

Sean you are correct this was a VERY GOOD read.

 

[Jimmysidecarr]

Wrong. Different casting. Take the 15 minutes to read the article I linked to that highlights every difference in detail.

Key differences:

Intake mani
Heads
Exhaust cams
Valves
Valve springs
Pistons
Con rod material
Crank bearing material
No oil squirters
Oil cooler
Flywheel
Dampers
Springs
Swaybars
Differential

Thanks Sean I guess I stopped reading too soon. I edited my post.

 

[me32]

Google "coyote vs roadrunner engine"

2011 Ford Mustang 302 - Inside The Boss - 5.0 Mustang Magazine

great info thanks for posting

 

[Nocturnal'14]

Wrong. Different casting. Take the 15 minutes to read the article I linked to that highlights every difference in detail.

Key differences:

Intake mani
Heads
Exhaust cams
Valves
Valve springs
Pistons
Con rod material
Crank bearing material
No oil squirters
Oil cooler
Flywheel
Dampers
Springs
Swaybars
Differential

$10,000

Sounds to me like Money well spent there......

OP: If your debating between the two then get the BOSS! well worth it!

 

[BlackMamba3]

Sounds to me like Money well spent there......

OP: If your debating between the two then get the BOSS! well worth it!

OP has a 2013 GT already.....

 

[Grant808]

Those articles cover the main engine differences.

A lot of the little differences can be found here:

BOSS differences vs. the GT

 

[gs462]

Wrong. Different casting. Take the 15 minutes to read the article I linked to that highlights every difference in detail.

Key differences:

Intake mani
Heads
Exhaust cams
Valves
Valve springs
Pistons
Con rod material
Crank bearing material
No oil squirters
Oil cooler
Flywheel
Dampers
Springs
Swaybars
Differential

13s dont have oil squirters either.

 

[corepwn]

13s dont have oil squirters either.

Yes they do.