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2011-2014 Mustangs
Engine/Tuning
Rebuilding Engine For Dummies....
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<blockquote data-quote="Silbult14" data-source="post: 15752124" data-attributes="member: 179221"><p>I have some experience in building engines, but none with the Ford Mod motors. The Boss rotating assembly is better than the stock Gen 1 stuff, but it still uses powdered metal rods which I would never use in a built from scratch engine. They aren't rebuildable and they aren't nearly as good as a true forged rod IMO. Ford must think so too since they don't use powdered metal rods in the Aluminator engines. These engines get real forged rods. The Boss pistons are forged to the best of my knowledge. They also have larger valve reliefs since the Boss heads have larger valves and stiffer springs than your stock Gen 1 heads. I don't know how many cc's each head's combustion chambers are, but Boss heads [and '15,'16'17 heads are very similar], but different from Gen 1 heads. This MAY result in a slight loss in the static compression ratio if Boss pistons are used with Gen 1 heads. All the Coyote engines have forged cranks, but since Boss engines have stronger [ and heavier ] rods and pistons the boss cranks will be balanced differently.</p></blockquote><p></p>
[QUOTE="Silbult14, post: 15752124, member: 179221"] I have some experience in building engines, but none with the Ford Mod motors. The Boss rotating assembly is better than the stock Gen 1 stuff, but it still uses powdered metal rods which I would never use in a built from scratch engine. They aren't rebuildable and they aren't nearly as good as a true forged rod IMO. Ford must think so too since they don't use powdered metal rods in the Aluminator engines. These engines get real forged rods. The Boss pistons are forged to the best of my knowledge. They also have larger valve reliefs since the Boss heads have larger valves and stiffer springs than your stock Gen 1 heads. I don't know how many cc's each head's combustion chambers are, but Boss heads [and '15,'16'17 heads are very similar], but different from Gen 1 heads. This MAY result in a slight loss in the static compression ratio if Boss pistons are used with Gen 1 heads. All the Coyote engines have forged cranks, but since Boss engines have stronger [ and heavier ] rods and pistons the boss cranks will be balanced differently. [/QUOTE]
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Rebuilding Engine For Dummies....
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