Differences in 11-12 and 13+ 5.0s
 

I have tried searching and can't seem to again find the actual differences in those motors. I searched before through google and found some link (can't confirm if it was Ford or not) that stated that there were some serious changes which allowed the update in power. Anyone have that info or a good link here?

-Alex

The 11-12's have a different head bolt, the 11-12s have piston oil squirters, the 13+'s do not...their pistons have a coating on them. the front engine cover is different on the newer motors as well. thats all i can think of off the top of my head.

There is no difference in power. The only difference is no oil squirters in the 13+.

A slightly revised tune on the 2013 gave them a smoother low end TQ curve, and also they "gained" 8 crank HP, but no one is sure where that was accomplished at (squirters or tune revision)

From what I have heard, the squirters are still there. Some engine builders say only change is different head bolts.

LOL, the slight bump in power was due to the loss of windage and not a tune revision.

The 13+'s do also have the smaller head bolts which doesn't really effect power. There have been a few reports here and there about a head lifting under big boost applications but those are few and far between.

the 13s are faster!

Hey, that is the information that was discussed when the 13s came out and were starting to be analyzed. I never saw anything else to to combat that theory. I'm just posting what I've heard. It is has been shown the TQ curve is smoother through the low RPMs though. It would make sense that a slight decrease in rotational weight would let the motor produce more work over the same time.

:Angry:

because your posting on the extensive number of motor builds you have done one 11-12s and 13s????

Okay, so if I said "I have read that it is supposedly...", would that have gone over better with you. :nutkick:

You're missing my point.

Ha..nice.

I figured I would read around for crate engines. Wouldn't the engines have a different part number if something was changed? From the fordracingparts.com website part M-6007-M50 looks to be what comes stock in the cars. However when you go to this page http://www.fordracingparts.com/crateengine/Main.asp#mod, it says the horsepower rating is 412 but when you click on the link it says the horsepower is 420. Weird.

My original thought when I saw the hp difference was either an intake or exhaust change. It seems like that would be the case since there are no different part numbers for the 412hp and 420hp motors. Thoughts?

-Alex

There are different part numbers for '11-12 and '13-14 service replacement engines from Ford.

In Sept of 2012, my '12 GT needed an engine replacement at 23700 miles. The engine they put in it is a '13 service replacement (BR3Z6006J) and required a slightly revised wiring harness and they reflashed the PCM.

Picked up about 2mph in both the eighth and quarter...

All I know is that the 13-14' were rated at 420hp the 11-12' were rated at 412. Only thing I can think of is ask around see who dynoed their 11-12s stock and what were their #s and stock dyno #s from the 13-14s ... in theory the 13-14s should put down more power.

Dang, I thought this was going to be about the '11-'12's looking like Mustangs and the '13-'14's like Chargers. My bad.

I blew my engine at 11k cyl 8 failure due to bad injector. I got a new 13 short block only 2k on the rebuild but to be honest power is the same. The coyotes are all under rated and thats confirmed by dynos of all years. Lets not have a dick meazuring contest we're all about 5.0

Shit at 11k? That blows.

Yea two rear end gear sets replaced and on my third tranny re build. Late 12 build. It sucks but she runs hard for me and I bang gears. Took an I/T/E Gen5 Camaro by 3 lengths to 140 with my brother onboard.

140 is fast bro!

Just a quick pull empty stretch of highway no ricer swerving

The '13 cars did not have piston squirters, tune slightly revised, pistons are coated, head bolts are different, front clips rear taillights and interior is different, most '13 I have seen manual make around 390 rwhp 11-12 make 370-380. Handful of differences but essentially the same car

Yes, but being someone who's ran both blocks I can say they are the same butt dyno wise and they dyno the same. Dyno Jet, Mustang, SAE and no matter the fact think about it like this... If their was a revised tune dont you think their would be a Tsb reflash? Ive seen 13s eat 12s/11s and vise versus . I think the up-rating on the Hp#s was a compensation on Ford's under rating the car to begin with.

I heard it was a government conspiracy where the government forced ford to underrate the horsepower numbers to help boost camaro sales while the government owned a large steak in GM... no I'm joking, but its as good a guess as anyone... p.s. my 2011 smokes 13 all the time, from digs or rolls so 8 extra horses be dammed..

My '12 M6 3.73 made 390/371 on your dyno with it's OEM engine and heavy cast 20" wheels. I haven't put it on the rollers with the new engine, but 2mph should be significant.

I much prefer the styling of the '11-12 front end and the black rockers (the painted ones make these cars look bloated) but otherwise I prefer the '13-14 cars. They're all good platforms for inexpensive fun.

PS - If I was going to buy a used 5.0, I would personally avoid a '11-12 car just because of my own experience and the fact I haven't seen a '13-14 engine let go. I'm sure it's happened but I'm not aware of it.

I agree.

Mod for mod they are identical, but stock for stock my experience the '13 make around 390 ish rwhp m6 car and the '11-12 make 380 ish. There are a few "freak" '11-12 out there but majority of them are in the 380 range. Remember also that the early '12 had the "'11" engines and late model '12 had the "'13" engines with the revised head bolts missing oil squirters and updated programming. Hell we had an '11 come in that made 405 bone stock m6 car and we have seen m6 cars make a low as 360... The '13 are real consistent 385-390 bone stock..

Oh I agree, the front end of the '13 are not appealing nor are the rear taillights of the '13. I would like to get a '13 with the digital display setup but convert the front and rear to '11-12 styling.

you have to be the only person that prefers the 11-12 tails to the 13-14s. The tails are the only thing that kept me from pulling the trigger on one earlier. I think the stock tail lights on the 11-12 is aweful. the 13-14s look like pure sex.

haha i can deal with the front end, that is easy to make look decent, but the taillights are fugly imo... by far the worst design I could imagine haha but I cant say much as i do not own one and probably never will...

I would have to agree that the 11-12's look way better. Not painting the rockers, the 11-12 hood looks way better (nobody can convince me the heat extractor hood on the gt does alot of good), the shelby wanna be front bumper. At least the 11-12 has an identity of its own amd doesnt try and steal the shelby identity.

the '13 hood does help to an extent, but i would take a cowl hood any day and have much better looks and function when setup properly!

LOL now you said that I can see the similarities.

I'd love the 13 taillights on my 11. The hood on the 13 is cool' I mean look the camaro followed the design cue and gave the camaro a landing strip heat extractor. I'm torn on the painted rocker panels , I like them but fear in 3 years the paint wold be rock chipped bare

I was thinking about the painted rocker panels (assuming you meant side skirts), and I believe that pretty much every iteration of the Mustang "GT" that's been produced with side skirts, (1987-1993 FOX, 1994-2004 SN95, and 2005-2009, then 2013-2014 S197's) has been painted.

This probably makes the 2010-2012 Mustang GT the oddball for painted side skirts. So in this regard, you would only have to look at the other 89% of Mustang GT's from 1987 and up to know just how well the paint holds up.

He's not the only one. I too feel that the lights look better on the 11-12 cars. Not that the 13+s have bad lights, I just don't like that huge black strip across the back.

Thanks for the responses everyone, I was mainly concerned with the engine differences. They are all great cars, everyone enjoy yours :)

-Alex

ill pull a Jeff lol :D ive had both so i can compare. 13s>11-12

everyone does saleen grill and boss front so they really dont have an "identity" and the lights are way better, who wouldnt want factory hids and led fogs?

my 11
http://i269.photobucket.com/albums/j...8/IMG_0818.jpg

13
http://i269.photobucket.com/albums/j...ps51ad565e.jpg

Your car looks the same foo. Besides the catfish mouth and the tail lights. But yes I do like the '13 tail lights more.

I guess Dodge and Ford got together and said hey let's copy each other on the front fascia. Lmao

http://i1292.photobucket.com/albums/...psb1f686d9.png

http://i1292.photobucket.com/albums/...ps178306bb.png