Get the perfect OE or Hot Rod look on your LS swap with this adapter kit! Includes both adapters required to run a 5 1/8" air cleaner and 4-Bolt LS DBW throttle body on a 4150 EFI intake manifold.

Keep OE drivability while getting that Classic look utilizing this Machined 6061 Throttle Body adapter when using an EFI Single plane style intake manifold.

Includes:

- THR-3011

- THR-3501

Features:

- LS3 (Bosch) MAP sensor port

- 3x Vacuum ports

- Maintains Factory O-Ring Throttle Body Gasket

- Accepts 1/4"-20 air cleaner stud (NOT INCLUDED)

- Includes Hardware

Required Parts:

- EFI Single Plane "Classic Style" Intake (INT-CLASSIC)

- Gen IV LS Throttle Body, Truck style Recommended (THR-4TR)

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!

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Air Cleaner Adapter Kit for Classic Style LS

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