When it comes to an LS swap, there are many moving parts. You will need to figure out things like engine and transmission mounts, fuel system, exhaust, ECU, and many other things as you move along. Another area that goes overlooked until the end of the build is the air intake system. And while a lot of guys utilize their fabrication skills for this, some of you may not have the tools or experience to build a custom intake system. Fortunately, Holley has all kinds of parts to help with an LS swap, including the Flowmaster Delta Force U-Fit Performance Air Intake system.
Recently we installed an LS in a Chevrolet squarebody truck with the factory Vortech intake and engine cover. Instead of busting out the welder and aluminum pipe, we gave the Flowmaster Delta Force U-Fit Performance Air Intake system a try.
The Delta Force U-Fit system was designed for the person performing a fuel-injected engine swap in a vehicle initially equipped with a carburetor or throttle body injection. This universal system comes with a custom-modded 4-inch intake tube with various bends and angles to fit on virtually any vehicle. In addition, the system includes a high-flow eight-layer gauze air filter, blade-style MAF sensor adapter, silicone couplers, stainless steel clamps, universal brackets, and hardware.
- Serviceable Lifetime High-Flow 8 Layer Cotton Gauze Filter
- Adjustable Mounting Brackets and Hardware
- Universal Performance Air Intake System
- Includes Reinforced Silicone Couplers
- Includes Blade Style MAF Adapter
- Contains Various Bend Angles
- Numerous Pre-set Cut Guides
- High-Quality Components
- Stainless-Steel Clamps
- Flowmaster Quality
Installing the Flowmaster Delta Force U-Fit Performance Air Intake system is straightforward. After looking at the engine compartment, we decided to place the air filter in the front corner of the driver’s side fender. Obviously, we would need a 90-degree bend from the factory throttle body to clear the radiator, so we started there. The Delta Force kit is set up in sections marked by ridges. After finding the piece needed, simply cut between the two lines. We found that the best for cutting the plastic pipe and least messy was with a Sawzall using a blade designed to cut metal. Just make sure you pay attention to the cut as things quickly get out of hand.
With our first piece cut, we attached it to the throttle body with the supplied silicone coupler and clamps. We then used another coupler and placed our MAF sensor inline. From here, we decided to mount the air cleaner to give us a better idea of what length sections we would need and the proper bends.
First, we mounted the supplied bracket and hardware with the air filter in hand. At this point, we determined that the 90-degree brackets would work nicely mounted on the inner fender. So, we marked the inner fender with a Sharpie and drilled holes for the bolts to pass through. Then, with the filter securely mounted, we took some quick measurements and adjusted the pipe angle that we had attached to the throttle body for better alignment. We then cut another straight piece and a 45-degree bend and mocked up the tube again. Everything is loose at this point and needs to be adjusted, including the MAF sensor. You want to make sure and turn it so that the wires stay away from the accessory belt.
Wrapping It Up
After we had everything lined up with the silicone couplers installed, we removed the piping to deburr any edges we might have missed and make sure it was clean. From there, we reinstalled the tube and tightened up all of the hardware.
Overall, the installation was simple, and we were impressed with Flowmaster’s Delta Force U-Fit Performance Air Intake fit and the factory looks. Another great feature is that we still have several sections and hardware left over for future projects.
For more information on this product and others, be sure to visit Holley.com.