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2012-2013 Boss 302 Mustang
would the GT intake work better on a BOSS engine? lets find out!
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<blockquote data-quote="pufferfish" data-source="post: 13513442" data-attributes="member: 153725"><p>well, I tried to find flow data before making my final decision to use boss heads in my build, but there is just nothing out there. in a mag article about the boss engine, a ford engineer stated that the intake flows 6% more than gt heads and 10% more on the exhaust. if those numbers are right, they are a bit less than the flow of all the ported head contenders on the market. my decision came down to construction and port volumes. ported heads use gt valves (and some have larger solid ss valves), where the boss heads use hollow stems and sodium filled. the boss heads are cast from a stronger aluminum (rumored to be the same material used in the powerstroke heads) and they are cast with smaller ports, so when they cnc the runners, the net volume matches the gt heads. this is something no ported head can achieve. bigger port volumes reduce velocity, which is a friend to NA motors. in my opinion, for a milder NA build, the boss heads are the best. monster NA builds are probably better on ported heads. forced induction is definitely better with as large a port volume as you can get.</p></blockquote><p></p>
[QUOTE="pufferfish, post: 13513442, member: 153725"] well, I tried to find flow data before making my final decision to use boss heads in my build, but there is just nothing out there. in a mag article about the boss engine, a ford engineer stated that the intake flows 6% more than gt heads and 10% more on the exhaust. if those numbers are right, they are a bit less than the flow of all the ported head contenders on the market. my decision came down to construction and port volumes. ported heads use gt valves (and some have larger solid ss valves), where the boss heads use hollow stems and sodium filled. the boss heads are cast from a stronger aluminum (rumored to be the same material used in the powerstroke heads) and they are cast with smaller ports, so when they cnc the runners, the net volume matches the gt heads. this is something no ported head can achieve. bigger port volumes reduce velocity, which is a friend to NA motors. in my opinion, for a milder NA build, the boss heads are the best. monster NA builds are probably better on ported heads. forced induction is definitely better with as large a port volume as you can get. [/QUOTE]
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2012-2013 Boss 302 Mustang
would the GT intake work better on a BOSS engine? lets find out!
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