Confirmed: 2013's have different pistons and no oil squirters
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It appears that the revised pistons would work in place of the older ones, at least as a set of 8 and a fair chance individually. Depending on how the change notice was written the revised pistons may become the only ones available as service parts.
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Originally Posted by 97GT12
It appears that the revised pistons would work in place of the older ones, at least as a set of 8 and a fair chance individually. Depending on how the change notice was written the revised pistons may become the only ones available as service parts.
Last edited by Overboost; Mar 23, 2012 at 08:45 PM.
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The only issue I can think of is balance because that little extra that is machined away on the 2013 piston. But in a set of eight that shouldn't be an issue.
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The pistons are the same shape underneath so there would be no need to remove the oil squirters. Now whether there is a detrimental effect from running coated pistons and oil squirters, that's another story. I doubt it. I can't think of a reason why there would be.
The only issue I can think of is balance because that little extra that is machined away on the 2013 piston. But in a set of eight that shouldn't be an issue.
The only issue I can think of is balance because that little extra that is machined away on the 2013 piston. But in a set of eight that shouldn't be an issue.
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The pistons are the same shape underneath so there would be no need to remove the oil squirters. Now whether there is a detrimental effect from running coated pistons and oil squirters, that's another story. I doubt it. I can't think of a reason why there would be.
The only issue I can think of is balance because that little extra that is machined away on the 2013 piston. But in a set of eight that shouldn't be an issue.
The only issue I can think of is balance because that little extra that is machined away on the 2013 piston. But in a set of eight that shouldn't be an issue.
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Some more information. Go to this link and search for pistons:
http://www.fordparts.com/Commerce/Ca...Mustang#Search
But wait, there's more. The Boss got a piston revision for late 2012s (and presumably 2013 as well):
I hope to ****ing god it's just the old forged Boss piston plus this new coating and that Ford didn't cheap out and try to get away with a coated hypereutectic on the new Bosses.
http://www.fordparts.com/Commerce/Ca...Mustang#Search
The old piston:
Engine Piston
MOD 5.0L-4V Dual Over Head Cam SEFI NA ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$36.16 Select a dealer for prices & availability
Vehicle Build Date before: 12/7/2011
The new piston:
Engine Piston
MOD 5.0L-4V Dual Over Head Cam SEFI NA ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$36.72 Select a dealer for prices & availability
Vehicle Build Date after: 12/8/2011
Engine Piston
MOD 5.0L-4V Dual Over Head Cam SEFI NA ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$36.16 Select a dealer for prices & availability
Vehicle Build Date before: 12/7/2011
The new piston:
Engine Piston
MOD 5.0L-4V Dual Over Head Cam SEFI NA ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$36.72 Select a dealer for prices & availability
Vehicle Build Date after: 12/8/2011
Engine Piston
5.0L V8 32V Dual Over Head Cam EFI Modular ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$83.66 Select a dealer for prices & availability
Vehicle Build Date before: 12/11/2011
Engine Piston
5.0L V8 32V Dual Over Head Cam EFI Modular ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
Call Select a dealer for prices & availability
Vehicle Build Date after: 12/12/2011
5.0L V8 32V Dual Over Head Cam EFI Modular ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
$83.66 Select a dealer for prices & availability
Vehicle Build Date before: 12/11/2011
Engine Piston
5.0L V8 32V Dual Over Head Cam EFI Modular ; Standard, Refer To Workshop Manual For Proper Grade Selection, Piston Only; Wrist Pin And Retainers Must Be Purchased Separately
Call Select a dealer for prices & availability
Vehicle Build Date after: 12/12/2011
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Thread Starter
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No they are still forged. That huge price difference is enough to know that... and the fact that if they pulled them from the car, everyone would be at ford's door step with pitch forks and torches.
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From: NJ
Lots of good thought here about the 5.0 changes. It sure would be nice if we had someone from the FoMoCo Coyote engine team answer some of these questions.
I have a late build 12 and hope mine still has the oil squirters. The Engineering behind this engine was one of the big selling points for me. For those not familiar with the inner workings of their 5.0, there was an excellent article in Hot Rod Magazine about it. Here is a link.
http://www.hotrod.com/techarticles/e...ustang_engine/
I have a late build 12 and hope mine still has the oil squirters. The Engineering behind this engine was one of the big selling points for me. For those not familiar with the inner workings of their 5.0, there was an excellent article in Hot Rod Magazine about it. Here is a link.
http://www.hotrod.com/techarticles/e...ustang_engine/
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The 5.0 in the 11-12 mustang has already proven it makes more than 412hp at the crank. Its underrated from the factory. Maybe ford bumped the claimed hp up to 420 to make it sound like they made an improvement...help sell more vehicles.
It will be interesting to see a stock 11-12 on a dyno the same day as a 13. I bet there is less than 8hp difference.
It will be interesting to see a stock 11-12 on a dyno the same day as a 13. I bet there is less than 8hp difference.