Quote:
Originally Posted by Chris1529
The boss block is a Windsor conventional sbf style block I believe. It is not the modular block for the 4.6-5.4.
They just revived the 5.0 size in the mod motor for this years cars. F-150's come with a 5.0 now too.
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Here is a pic of the new Boss 5.0 4v longblock.
Like I posted before, it's a 7500 rpm (road) racing engine put into a street legal Mustang.

The tell-tale sign that it's a Boss is the oil cooler.
Externally, everything else looks the same as the GT engine.