performance heads?
Laughing Gas
Joined: Sep 2013
Posts: 1,117
Likes: 103
From: North Idaho
You mean like swapping a Chevy 23 degree head to an 18 or 15 degree head? That's for wedge heads only, not really applicable to a DOHC head.
Do a search and find yourself a reputable head porter, one that works with mod motors.
Do a search and find yourself a reputable head porter, one that works with mod motors.
Mountain Pass
Joined: Feb 2017
Posts: 205
Likes: 18
I think I read in a book that there's not anything more you can do to improve the heads on the 2nd generation coyote. Ford spent a lot of time and money on the research and development for these engines. I think I read somewhere that the 3rd Gen. engine will have direct injection, a definite improvement.
Lead Driver
Joined: Sep 2003
Posts: 7,016
Likes: 208
From: SoCal
Indeed, Ford did squeeze a few percent more power out of the 3rd gen Coyote engine, but it was no small task. First, they did away with the steel cylinder liners, and used the plasma spray coating, like in the GT350 engines. This increased the displacement slightly from 4.956 liter to 5.038 liters, so it can technically still be called a 5.0 liter engine. They also increased the size of the valves and ports for better flow. I'm sure the cams were updated as well. It now has both direct AND indirect injection for more optimal fuel delivery.
It's now putting out power levels normally associated with big block engines, but it may be at or real close to the limit of what you can do with the platform. If you want much more power out of it, you will need to add forced induction.
It's now putting out power levels normally associated with big block engines, but it may be at or real close to the limit of what you can do with the platform. If you want much more power out of it, you will need to add forced induction.
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