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Product Summary

Universal Fit, T4 Turbine Housing Inlet Flange

  • Hot side kit includes all the major components necessary to fabricate the hot side of an LS turbo kit
  • Includes a 67/62 VS Racing turbo with T4 flange and is rated at 700 max flywheel horsepower
  • Hooker LS turbo manifolds along with universal crossover pipe simplify hot side fabrication
  • 44mm VS Racing wastegate is included to regulate boost pressure properly
  • CNC profiled T4 transition flange fits directly to 3” exhaust tubing and minimizes back pressure

Comes as a Kit

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Key Specs

Turbine Housing Inlet FlangeT4
Turbine Housing Outlet Flange3 Inch V-Band
Turbocharger StyleGT35
Volute TypeOpen Scroll
Compressor Housing A/R Ratio0.72
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Need To Know

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Speedway Motors 91604123 Details

  • 67/62 VS Racing turbo with cast-iron .82 A/R ratio turbine housing
  • Turbo comes with standard T4 inlet flange and 3-inch V-band outlet flange
  • Journal bearing center housing with 7/16”-24 oil feed and GT35 oil drain flange
  • Cast aluminum compressor housing with slip fit 4-inch inlet and 2.5-inch outlet
  • Rated to 700 flywheel HP (typical 300-360ci engine will net 550-600 at the tire)
  • Cast iron LS turbo manifold kit makes fabbing LS hot side turbo systems easy
  • Universal design LS turbo crossover pipe kit for use with most any transmission
  • LS swap turbo kit includes T4 flange, V-band clamps, and 44mm wastegate

Everything Your LS Swap Needs to Build a Hot Side Turbo Setup

Hit any cruise night in America and you’re bound to trip over at least a couple of turbocharged LS swapped vehicles. From 3rd Gen Camaros to C10 pickup trucks, and even some Fords, there is simply no denying the power that a turbocharged LS can put to the tires. Whether you already have a 5.3 LS engine down on the frame rails and you’re looking to add a 5.3 LS single turbo kit to it, or you’re still in the planning phase with your 5.3 LS sitting on engine stand in the shop, getting everything you need to build the critical, and often complicated, hot side of a 5.3 LS single turbo kit is a breeze now thanks to our LS hot side turbo kit we’ve built using VS Racing turbos and Hooker’s LS turbo manifold kit as key pieces. Throw in the turbo flange, V-band clamps, and the proper wastegate and all you have to do is break out the welder! We feel this is one of the best budget LS turbo kit offerings to build the hot side of an LS single turbo kit you will find that can easily create a 700 HP LS combination.

Our Hot Side LS Single Turbo Kit Starts with A 67mm Turbo Ready for Bolt-On Power

The heart of the LS hot side turbo kit is VS Racing’s 67/62 cast turbo. Starting with VS Racing’s precisely machined cast iron turbine housing that uses the popular T4 mounting flange and 3-inch V-band clamp outlet, a cast aluminum compressor wheel and oil cooled journal bearing center housing assembly is fitted and then finished off with a cast aluminum compressor housing with 4-inch inlet and 2.5-inch outlet. Spool up is quick with the .82 A/R turbine housing and cast compressor wheel. This is the perfect foundation for a high boost 700 HP 5.3 LS build or bolt it on to a 6.0 LS and easily have a 700 HP 6.0 LS with plenty of room to grow.

The 3-inch turbine outlet is easily plumbed using a section of 3-inch tubing to create front fender exit exhaust or build off the 3-inch tubing to adapt to your current exhaust system. The compressor outlet uses 2.5-inch tubing that is easily retained using hose couplers and T-bolt style clamps.

Use our T4 oil feed and drain kit to plumb your engine’s pressurized oil to the turbo’s center housing assembly. To get your turbo’s hot oil back to the pan for cooling you’ll need our T3 oil drain adapter along with the AN -10 fitting of your choice. At the oil pan you’ll need to add an AN -10 weld on bung fitting or you can bolt on our LS swap oil pan with built in turbo oil drain fitting if you need a LS swap turbo kit pan anyway.

All The LS Hot Side Parts You Need to Get the Job Done

To mount the hot side of your 5.3 LS single turbo kit to your engine we’re including Hooker’s cast iron LS turbo manifold kit for a perfect fit to your LS engine. The Hooker LS turbo manifold kit provides a great fit with turbo inlet placement at the right front of the engine. Hooker’s LS turbo headers with crossover pipe kits offer several options for application specific 16-gauge stainless steel exhaust LS turbo crossover pipe designs. This LS turbo hot side piping kit features a universal crossover builder kit that will work with most transmissions. We offer additional 67mm LS turbo hot side piping kits with LS turbo crossover pipe fitments for 4L60/4L80T56/6L80, and a TH350/TH400 that works with the classic GM three-speed automatics, making these the best turbo kit for 5.3 LS builds anywhere. We also offer these same LS single turbo kit applications with a larger 78mm turbo as well, perfect to build a 6.0 LS single turbo kit from.

The included LS single turbo kit T4 flange bolts directly to the turbo in the kit and provides unlimited placement options using the supplied 3-inch U-bend tubing and V-band clamps/flanges to attach to the Hooker LS turbo manifold kit outlet. A 44mm VS Racing wastegate, additional V-band clamps and hardware round out the rest of the LS hot side single turbo installation kit.

We offer air intake tubingair filtersintercoolers, and intercooler piping to build out your cold side build for your 5.3 or 6.0 LS single turbo kit. Not to mention many accessories, from boost and air/fuel ratio  gauges, to AN fittings, plumbing, and more can all be found via our category search or just drop what you’re looking for in our search box! If you’re looking for the best 5.3 LS turbo kit or the best 6.0 LS turbo kit for your LS swap project, Speedway Motors has what you need to accomplish your hot side and cold side LS single turbo kit build.

Features

Included in this Kit:

(1) T4 Turbo Transition Weld-On Flange, 3-Inch, A36 Mild Steel

  • Flange is tapped 3/8-16
  • For 3-inch OD tubing
  • Minor gasket matching and or hand fitting of slightly oversized tubing may be necessary

(1) Hooker Headers 8510HKR GM LS Turbo Manifold Kit

  • 3-inch V-Band Outlet – 2.25-inch V-band crossover connections
  • Heat shield to protect heater hoses
  • Hardware included: stainless steel V-band clamps, V-band flanges & header bolts

(1) Hooker Headers 8517HKR LS Turbo Crossover Pipe, Universal Builder Kit

  • LS turbo crossover pipe is 16 gauge, mandrel bent 304 stainless steel, includes flex joint and V-band flanges
  • Universal crossover pipe kit provides optimal fit and ground clearance

(1) Hooker 12280HKR Mild Steel 180 Degree Mandrel U-Bend Pipe, 3 Inch

  • 18 gauge mild steel, 180 degree bend, tube size 3-inch OD, Radius 6-inch, Leg A 6-inch, Leg B 6-inch

(1) VS Racing ST1G35T4 67/62 Cast Journal Normal Rotation Turbo

  • VSR 67/62 cast journal bearing offering .82ar with T4 flange and V-band

(1) VS Racing VSR44WG Wastegate Gen 3, 44MM

  • Comes complete as a kit with flanges
  • Base spring pressure is 10.5 psi (6 psi outer spring and 5 psi inner spring)
  • 4 psi spring included for use with CO2 controller

(1) Speedway Motors 3-inch V-band Flange W/Clamp

  • V-band flange for downpipe construction, stainless steel

Speedway Motors 91604123 Specifications

KEY SPECS
MFG. Part #91604123
BrandSpeedway Motors
Turbine Housing Inlet FlangeT4
Turbine Housing Outlet Flange3 Inch V-Band
Turbocharger StyleGT35
Volute TypeOpen Scroll
Compressor Housing A/R Ratio0.72
Compressor Wheel ConstructionCast Aluminum
Turbine Wheel Exducer Size62 mm
Turbine Housing A/R Ratio0.82
Turbocharger Bearing StyleJournal Bearing
Wastegate Size44mm
GENERAL
Compressor Housing IncludedYes
Compressor Housing MaterialAluminum
Compressor Housing FinishNatural
Turbine Housing IncludedYes
Turbine Housing MaterialCast Iron
Turbine Housing FinishNatural
Compressor Wheel Inducer Size67 mm
Compressor Outlet StyleSlip-Fit
Ported Compressor HousingYes
Wastegate TypeExternal
Oil Feed Fitting7/16"-24 IF to -4 AN
Wastegate Actuator IncludedYes
Wastegate StyleMechanical
Wastegate Base MaterialStainless Steel
Wastegate Base FinishNatural
Wastegate Top Cap MaterialAluminum
Wastegate Top Cap FinishAnodized
Wastegate Top Cap ColorBlack
Spring Rates Included4 psi, 6 psi, 7 psi
Exhaust Adapter IncludedYes
Intake Adapter IncludedNo
Oil Adapters IncludedNo
Exhaust Manifolds IncludedYes
Crossover Pipe IncludedYes
Crossover Pipe Diameter2.25"
Exhaust Pipe Size3"
Downpipe Size3"
Welding RequiredYes
Clamps IncludedYes
Sold in QuantityKit
Turbocharger CoolingOil
Turbocharger SetupSingle

Fitment

  • GM LM4

  • GM LS6

  • GM LS2

  • GM LSA

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L76

  • GM LC9

  • GM LMG

  • GM LY5

  • GM LY5

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS1

  • GM LS6

  • GM LS2

  • GM LS3

  • 4.8 Chevy LS V8

  • GM LM7

  • 4.8 Chevy LS V8

  • GM L20

  • GM LM7

  • GM LY2

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ9

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ9

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LS3

  • GM LM4

  • GM LMG

  • GM LY5

  • GM LM7

  • GM L59

  • GM LM7

  • GM LC9

  • GM LMG

  • GM LY5

  • GM LC9

  • GM LMG

  • GM LMG

  • GM LY5

  • GM LQ4

  • GM LMG

  • GM LY5

  • 4.8 Chevy LS V8

  • GM L59

  • GM LM7

  • 4.8 Chevy LS V8

  • GM LMG

  • GM LY5

  • 6.2 Chevy LS V8

  • GM LC9

  • GM LMG

  • GM LC9

  • GM LMG

  • GM LMG

  • GM LY5

  • GM LH6

  • GM LS2

  • GM LM4

  • GM LM4

  • GM LM4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • GM L20

  • GM LC9

  • GM LMG

  • GM L33

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L20

  • GM LM7

  • GM LY2

  • GM LC9

  • GM LMG

  • GM LM7

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • 6.2 Chevy LS V8

  • GM LH8

  • GM LH8

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS2

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