boss heads

tjm73

of Omicron Persei 8
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The 13-14 BOSS valves are 37mm/31mm intake/exhaust and lift is 12mm/11mm respectively.

2015 is 37.3mm/31.8mm with 13mm lift on both. It also has revised ports. By all published accounts the production 2015 head is essentially the BOSS head after Ford figured out how to make it cheaper.
 
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ford20

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'15 heads work?

Yes they do, I just ordered a pair, the Boss heads were just too much money for me to cut into.

The 13-14 BOSS valves are 37mm/31mm intake/exhaust and lift is 12mm/11mm respectively.

2015 is 37.3mm/31.8mm with 13mm lift on both. It also has revised ports. By all published accounts the production 2015 head is essentially the BOSS head after Ford figured out how to make it cheaper.

The exhaust cam on the Boss is 13mm lift while the intake is still the same 11mm lift as the GT. The 2015 heads are badass, they have more meat to them as the Boss 302 but they flow similar numbers as the Boss 302 heads with 1mm larger valves as well for half the price of Boss heads. I forget about the valvtrain as I didn't really care too much about that part.
 

Steve@Tasca

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What is this all about?!

Ford only has 51 complete sets of Boss heads in the system. As far as I know they aren't producing any more of them.

The only way to order them is to fax the order to Ford with the VIN, I believe the VIN is all we need.

Ford did the same thing on the supercar GT parts a few years back, anything unique to that car is VIN restricted.

-Steve
 

Steve@Tasca

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I can do the '15 heads for $1470 plus shipping, I've sold one set but as far as I know they aren't installed yet.

They "should" work but until they're on a car and running I can't promise anything.

-Steve
 

5.ohmygod

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Is there any word about the compatibility of the 2015 heads with the older coyotes?
 

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