The 426 Hemi, otherwise known as the “Elephant”, is arguably the most recognizable high performance engine of all time.

 Promptly outlawed by most racing sanctions shortly after its introduction due to the unfair advantage provided by its hemispherical combustion chambers,

 Hilborn’s newest model for the Hemi is based off of a huge 2-7/8 butterfly casting that is redesigned to accept butterflies as small as 2-7/16. So if you’re running a stock 426 engine or an 1100 hp 604cid monster, we can choose the best size for your combination. With that, one can now enjoy the looks of an all out racing injector with the proven drivability of a Hilborn IR manifold. Available for 16 bolt heads only.

Why is a Hilborn from Alkydigger better?
Hilborn Injector manifolds are a true individual runner (IR) manifold providing the best all around power output and drivability in comparison to other IR manifolds manufactured with a plenum chamber. A true IR does not suffer from the disruptive cylinder to cylinder pulses associated with a common plenum intake or IR manifolds with a plenum chamber. These pulses promote fuel separation from the air carrier, the slowing of air movement in the manifold, and the inability to realize engine potential due to poor burn characteristics in the combustion chamber. The IR design of the Hilborn isolates these pulses allowing the engine to make more bottom end torque, have increased throttle response and most importantly allow the engine to accelerate faster. Most applications will also see a significant increase in top end power. These same attributes also allow smoother low speed drivability.

Besides, nothing looks better than eight stacks sitting on top of your engine. Have the best of both worlds with a Hilborn!
Proudly made in the USA!

Standard Features:
• high quality heat-treated aluminum casting
• steel, cad-plated ram tubes
• fully assembled with shafts, butterflies, linkage, fuel rails, mounted TPS with connector and vacuum kit
• Full ECU by Holley/Hilborn with self managing software-  all harnesses
• Fuel pump Electric Weldon with regulator and dual filters . 
  
  Options:
• polished castings
• polished ram tubes
• powder coating
• port matching
• complete hand porting


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