3.9L 4BT Cummins Individual Runner Billet Intake Manifold

3.9L 4BT Cummins Individual Runner Billet Intake Manifold

$7,814.50

Wehrli Custom Fab Intake Manifold, Billet Individual Runner for 3.9L 4BT Cummins

Massive, custom fabricated aluminum intake plenum
High flow precision CNC machined tapered individual intake runners
Designed for extreme performance drag racing and pulling engines
4 in. V-Band Inlet with matching steel flange and V-band clamp for custom intercooler pipe fabrication
6″ Diameter main plenum offers massive volume increase vs. OEM Cummins intake shelf
Includes two 1/8″ NPT Ports at the rear of the plenum
No Mounting Hardware included
FOR RACING USE ONLY, EXTENSIVE MODIFICATIONS REQUIRED

Available on back-order

Description
Additional information

The WCFab Billet Individual Runner Sheet Metal Intake for 3.9L 4BT Cummins engines feature a massive, custom fabricated aluminum intake plenum and high flow precision CNC machined tapered individual intake runners to provide significantly increased airflow and more balanced distribution to all cylinders. Designed for extreme performance drag racing and pulling engines with extensive cylinder head machining work looking to maximize engine volumetric efficiency and high RPM power output. Requires custom fuel injection lines and intercooler piping, milling off the cast intake shelf and mounting holes drilled and tapped in the cylinder head for installation.