just wanted to know if anyone has seen one,or know
of a shop that custom makes a performance 5.4 3v intake manifold.
Also do u guys think geting a intake manifold from a supercharger kit
and fabricate the top part for a regular throttle body mount and cold air kit would help gain hp and tq?

 

5.4 stock intake is engineered for max low end torque, which is what you need in a heavy truck. I would leave it alone. What are you trying to accomplish here anyway?

 

If you aren't going forced induction then spend your money on something else. The factory one is good enough with minor mods.

 

Well what im trying to accomplish is go as fast as i can N/A. Now that being said,i have done everything i can to my truck performance wise. the only thing i lack is an aftermarket intake manifold.and the cams that i have suppose to pull to 7500 rpms wish i dont want to rev my truck that much,but my engine is forged and would like to shift somewere around 6500 rpms.And the stock intake stops pulling at 5500 rpms.so what do u guy recomend,the guy who built my engine said i should be over 400 rwhp easy and right now im at 386rwhp but at the dyno my truck stops making pwr at 5600 rpms,it doesent lose pwr but it doesend gain none either.and the shop told me my biggest restriction was my manifold?

 

If you are going to turn those kind of revs you might want to keep an eye on the torque converter.

Just my $0.02

 

i have PI 3400 rpm converter,one of the performance parts that i
liked the best. truck feels so much stronger of the line.

 

https://www.f150online.com/forums/pa...-manifold.html