20 Best Ls Turbo 350 Adapter [2024]

Are you looking for the best Ls Turbo 350 Adapter? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Ls Turbo 350 Adapter.

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1 GM Gen III LS V8 Flexplate Adapter Kit to TH350/TH400/700R4 Transmission GM Gen III LS V8 Flexplate Adapter Kit to TH350/TH400/700R4 Transmission
2 TASAN RACING LS1 Flexplate Adapter Spacer for TH350 TH400 Conversion Swap LS2 LS3 LQ4 LT1 LS7 5.7... TASAN RACING LS1 Flexplate Adapter Spacer for TH350 TH400 Conversion Swap LS2 LS3 LQ4 LT1 LS7 5.7...
3 Single Turbo Hotparts Kit Turbocharger Vortec V8 LS 4.8 5.3 6.0 Silverado Sierra Single Turbo Hotparts Kit Turbocharger Vortec V8 LS 4.8 5.3 6.0 Silverado Sierra
4 HTC Vive Wireless Adapter for Vive Pro/ Cosmos Series HTC Vive Wireless Adapter for Vive Pro/ Cosmos Series
5 Turbo Kit T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0 99+ Turbo Kit T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0 99+
6 Turbo Kit T70 Single T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0 Turbo Kit T70 Single T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0
7 Brian Tooley Racing BTR Truck Stage 3 Includes Cam, Beehive Springs, Pushrods, Michigan Motorsports... Brian Tooley Racing BTR Truck Stage 3 Includes Cam, Beehive Springs, Pushrods, Michigan...
8 ICT Billet LS TWIN TURBO DUAL 90 degree 1/8' NPT OIL FEED LINE ADAPTER PLATE LS1 LSX kit Port LS3... ICT Billet LS TWIN TURBO DUAL 90 degree 1/8" NPT OIL FEED LINE ADAPTER PLATE LS1 LSX kit Port LS3...
9 Transmission Cooler Hose Fitting, Fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks,... Transmission Cooler Hose Fitting, Fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks,...
10 ICT Billet - Transmission Adapter Fittings Front and Rear -6AN Flare to 1/4' NPSM TH350 TH400 4L60E... ICT Billet - Transmission Adapter Fittings Front and Rear -6AN Flare to 1/4" NPSM TH350 TH400...
11 ICT Billet LS Oil Port Adapter 1/8' NPT Turbo Oil Feed Plate Turbocharger Supply Compatible with LS1... ICT Billet LS Oil Port Adapter 1/8" NPT Turbo Oil Feed Plate Turbocharger Supply Compatible with...
12 HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) & MULTEC/Delphi,... HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) &...
13 Brian Tooley Racing BTR Turbo LS Stage 3 Cam, Spring Kit with Titanium Retainers and Chromoly... Brian Tooley Racing BTR Turbo LS Stage 3 Cam, Spring Kit with Titanium Retainers and Chromoly...
14 Exhaust Header Manifold For Chevrolet LS1 LS6 LSX V8 Turbo+2 x Elbows T3 T4 To V Band 3.0 Exhaust Header Manifold For Chevrolet LS1 LS6 LSX V8 Turbo+2 x Elbows T3 T4 To V Band 3.0
15 Z Whip LS 1/8” NPT Oil Port for Turbo Oil Feed Line Auxiliary Oil Supply Billet Adapter Plate LS1... Z Whip LS 1/8” NPT Oil Port for Turbo Oil Feed Line Auxiliary Oil Supply Billet Adapter Plate...
16 Muzzys LS Swap Crankshaft Adapter Sleeve Torque Stall Converter Hub Adapter Transmission Crank... Muzzys LS Swap Crankshaft Adapter Sleeve Torque Stall Converter Hub Adapter Transmission Crank...
17 ICT Billet LS Turbo Alternator and Power Steering Bracket Kit for LS1 LS3 water pump Made in USA... ICT Billet LS Turbo Alternator and Power Steering Bracket Kit for LS1 LS3 water pump Made in USA...
18 ICT Billet Oil Pan Pressure Sensor Adapter Port Dual 1/8' npt - LS Truck - M16-1.5 Sending Unit... ICT Billet Oil Pan Pressure Sensor Adapter Port Dual 1/8" npt - LS Truck - M16-1.5 Sending Unit...
19 MSCRP LS Throttle Body Bypass Hose kit LS Coolant / Steam Port Crossover Hose Kits MSCRP LS Throttle Body Bypass Hose kit LS Coolant / Steam Port Crossover Hose Kits
20 Brian Tooley Racing BTR Turbo LS Stage 4 Cam, Spring Kit with Titanium Retainers and Chromoly... Brian Tooley Racing BTR Turbo LS Stage 4 Cam, Spring Kit with Titanium Retainers and Chromoly...
SaleBestseller No. 1
GM Gen III LS V8 Flexplate Adapter Kit to TH350/TH400/700R4 Transmission
  • This kit includes the parts required to bolt a GM TH350, 700R4, 200-4R, or Powerglide transmission behind a Gen III LS engine
  • Includes flex plate, torque converter adapter sleeve, flex plate bolts, and torque converter bolts
  • Works with 10.75" and 11.066" (11.1") torque converter bolt patterns
  • Works with factory LS starter to reduce conversion costs
  • Flexplate is .035" thicker than stock which meets SFI 29.1 certification
Bestseller No. 2
TASAN RACING LS1 Flexplate Adapter Spacer for TH350 TH400 Conversion Swap LS2 LS3 LQ4 LT1 LS7 5.7...
  • LS1 Flexplate Adapter Spacer For GM TH350 TH400 Conversion Swap LS2 LS3 LS6 5.3 6.0 LS7
  • When Installing a TH350 or TH400 behind a LS Engine while Using a Curved Flywheel You'll Need this Adapter Spacer
  • The Spacer Will Center the Nose of the Converter to the Curved Flexplate
  • Package Include: 1 x Flexplate Adapter Spacer
  • For Use on 1998-04 LS1 Based Engines Using a TH350 or TH400 Transmission
Bestseller No. 3
Single Turbo Hotparts Kit Turbocharger Vortec V8 LS 4.8 5.3 6.0 Silverado Sierra
  • Brand New complete direct bolt on, turn-key single turbocharger kit with instructions.
  • Every detail has been thought out down to the vacuum lines, clamps, brackets, check valves, hardware, oiling system, and pcv system.
  • Easily installed by the average enthusiast on a weekend
  • There is no custom intake or exhaust work needed aside of a downpipe and some models need maf wire extension.
Bestseller No. 4
HTC Vive Wireless Adapter for Vive Pro/ Cosmos Series
  • Wireless VR for Vive cosmos, Vive Pro, Vive Pro eye and Vive Pro 2 series
  • Powered by Intel wigig Technology with near-zero latency. Allows for multi-player VR in the same play space - up to 3 people in a single room-scale...
  • Requires available pcie slot
  • Included battery allows for up to 2.5 hrs of play
  • VIVE Wireless Adapter supports 3264 x 1632 resolution and 90Hz refresh rate when used with VIVE Pro 2.
Bestseller No. 5
Turbo Kit T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0 99+
  • Chevy Silverado / GMC Sierra LS Single T4 6466 Turbo Kit
  • 1999-Current 4.8/5.3/6.0/6.2 V8
  • Awesome hot parts package
  • Hi Flow T4 cast passenger and oversized cast driver side manifold
  • T4 T70 Trim Turbocharger Cast Passenger T4 Manifold Cast Driver High Flow Manifold Stainless Steel Crossover Stainless Steel 3" Downpipe w/ turndown...
Bestseller No. 6
Turbo Kit T70 Single T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0
  • Turbo Kit T70 Single T4 Silverado Sierra Turbocharger Vortec V8 LS 4.8 5.3 6.0
  • Cast passenger and driver side manifolds
  • Stainless TIG welded crossover
  • 38mm external wastegate
  • -4AN oil feed kit with adapter plate + Hardened stainless hardware
Bestseller No. 7
Brian Tooley Racing BTR Truck Stage 3 Includes Cam, Beehive Springs, Pushrods, Michigan Motorsports...
  • Brian Tooley Racing BTR Stage 3 Truck Cam, Beehive Springs, Michigan Motorsports Seals, 7.400" Chromoly Pushrods 4.8 5.3 6.0
  • The Brian Tooley Vortec Racing Truck Cam Kit includes: Stage 3 Truck Cam, Beehive Springs, Set of VS LS Hat Seals, 7.400 Chromoly Pushrods
  • Stage III Camshaft Specs Specs: 218/224 .553/.553 110+0 Requires a 3 bolt timing gear.
  • STAGE 3 SPECIFICS: The Stage 3 V2 camshaft is an amazing all around grind for the truck enthusiast. You sacrifice some low end torque in the pursuit...
  • Will work with stock converter in some trucks, but recommended to install a 2800-3000 converter for best overall performance.
Bestseller No. 8
ICT Billet LS TWIN TURBO DUAL 90 degree 1/8" NPT OIL FEED LINE ADAPTER PLATE LS1 LSX kit Port LS3...
  • LSX 1/8 DUAL OUT FEED OIL PORT ADAPTER PLATE LS1 LS Camaro Port 90 degree 551533
Bestseller No. 9
Transmission Cooler Hose Fitting, Fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks,...
  • Fitment - Transmission cooler hose fitting fit for Chevy Ford Mopar GM GMC Buick Cadillac Cars and Trucks.
  • Product Size- This stainless steel flexible braided transmission hoses, each 3/8" inner diameter hose is approximately 52" in length, and comes with...
  • Replace Number - Transmission cooler hose fitting replace number is TH350 700R4 TH400.
  • Compatible with -The universal kit is perfect for your Rat Rod, Hot Rod, Street Rod, Muscle Car, Custom and more;Works with lots of Chevy, Ford,...
  • Package Include - AN-6 flared to 1/4" NPT billet adaptors, fits most 700R4, TH350, TH400; Please check fitting size prior to ordering (Some are 1/4"...
Bestseller No. 10
ICT Billet - Transmission Adapter Fittings Front and Rear -6AN Flare to 1/4" NPSM TH350 TH400 4L60E...
  • Build your own custom -AN transmission lines with these -6AN fittings
  • Compatible with GM transmission case holes, up to 2007
  • Compatible with: TH350, TH400, 4L60E, 700R4, 200-4R, TR6060, Ford AOD 4R100, 4R70W, and C5 transmissions
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Includes 2 fittings and orings
Bestseller No. 11
ICT Billet LS Oil Port Adapter 1/8" NPT Turbo Oil Feed Plate Turbocharger Supply Compatible with LS1...
  • Conveniently add a 1/8" NPT oil supply for your turbocharger
  • Compatible with all LS oil pans (except dry or front sump)
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Heavy duty, 1/2" thick billet aluminum plate for maximum oil circulation
  • Includes re-usable oring seal and mounting hardware
Bestseller No. 12
HPI 03-07 LS Vortec Standalone Harness 4.8 5.3 6.0 (Drive by Wire) (Green/Blue PCM) & MULTEC/Delphi,...
  • WE SHIP PRIORITY MAIL. DELIVERED WITHIN 5 DAYS (GREEN/BLUE PCM CONNECTOR & MULTEC/DELPHI FUEL INJECTOR CONNECTORS) (for ev1 or ev6 injector connectors...
  • These are after market harnesses and ready to ship (WE CAN SOLVE 99% OF ANY PROBLEMS. SO PLEASE CONTACT US BEFORE OPENING A RETURN REQUEST)
  • These harnesses are designed for retrofitting '03 - '07 Vortec engines (4.8, 5.3, 6.0-Liter) and 4L60E transmissions into older muscle cars and street...
  • 36" ADDED LENGTH FOR EASY COMPUTER MOUNTING Made in the USA
  • 1200 Degree Fiberglass Braid on All Circuits Ran by Heat.... All Factory CPA (Connector Position Assurance Locks
Bestseller No. 13
Brian Tooley Racing BTR Turbo LS Stage 3 Cam, Spring Kit with Titanium Retainers and Chromoly...
  • Brian Tooley Turbo LS Stage 3 Camshaft, BTR Platinum dual springs with Lightweight Titanium Retainers, and 7.400 Chromoly Pushrods.
  • Cam specs are:230/235 .616"/.614" 114+4 and comes a 3 bolt timing gear pattern.
  • When you need a little more RPM than the stage 2 can give you. If you have a light car wanting to push the limits, then this is the go to cam for your...
  • Springs: BTR Platinum Dual Spring Kit for LS engines using stock rocker arms. Includes dual polished springs, matching lightweight Titanium Retainers...
  • Pushrods: 7.400" Long 5/16 Chromoly .080 Wall Pushrods by Brian Tooley Racing. Highly recommended when upgrading Camshafts.
Bestseller No. 14
Exhaust Header Manifold For Chevrolet LS1 LS6 LSX V8 Turbo+2 x Elbows T3 T4 To V Band 3.0
  • Huge 1 3/4" Stainless Primary Tubes (true 1 3/4 unlike the others listing the same header by multiple companies with multiple sizes)
  • 7/16" Thick Flanges 3" V-Band Collectors, CNC Mandrel Bent Pipes for Excellent Flow, 4 to 1 Header Design to Create a Compact Package for Universal
  • T3 : hole to hole 45*86mm/T4 : hole to hole 70*83mm/V band Flange 80mm ID 93mm OD.Cast Turbo Elbow Adapter T3 T4 to 3" V-Band SS304
  • 304 Stainless Steel Cast and Machined Adapter, with Tight Radius. Works for Many Turbo Applications. V band Flange Allows Rotation of the Turbo At Any...
  • Application : Small Block V8 LS1/LS2/LS3/LS6 LSX 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
Bestseller No. 15
Z Whip LS 1/8” NPT Oil Port for Turbo Oil Feed Line Auxiliary Oil Supply Billet Adapter Plate LS1...
  • Billet 1/8” NPT Oil Port Gives you a place to attach a turbo oil feed line or an aftermarket oil pressure sensor. (Basically, anything with a...
  • COMPATIBLE WITH GEN 3 & 4 LS OIL PANS – Z WHIPs oil pressure sensor adapter kit is compatible with all Gen 3 & Gen 4 LS oil pans EXCEPT GTO front...
  • We are an AS9100D and ISO 9001:2015 Certified Manufacturer. Parts we produce fly at 30,000 feet where failure is not an option.
  • Proudly made in the USA from Aerospace Grade Billet Aluminum
  • When you purchase Z Whip Parts you will always get the highest quality for your vehicle that you rightfully deserve
Bestseller No. 16
Muzzys LS Swap Crankshaft Adapter Sleeve Torque Stall Converter Hub Adapter Transmission Crank...
  • GM LS / LT Swap (Gen III, IV, V), Adapts TH350, TH400, 700R4
  • Used on various LS Swaps and Conversions
  • Fits Gen III/IV LS and Gen V LT series engines
  • Not required on 1999-2000 6.0L stock flexplate (longer crank with flat flexplate)
  • Inserts into rear of crankshaft. If using a curved flexplate you'll need this adapter spacer.
Bestseller No. 17
ICT Billet LS Turbo Alternator and Power Steering Bracket Kit for LS1 LS3 water pump Made in USA...
  • Used for relocating the alternator and power steering pump close to the engine centerline to clear turbo headers
  • Compatible with: truck/SUV (or LS3/L99 Camaro) crank pulley (ICT# BAL300)
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • This kit includes USA made metric flange bolts, belt tensioner, and idler pulleys
  • Includes mounting brackets, tensioner, idlers pulleys, and all mounting hardware
Bestseller No. 18
ICT Billet Oil Pan Pressure Sensor Adapter Port Dual 1/8" npt - LS Truck - M16-1.5 Sending Unit...
  • Oil Pressure Sending Unit Relocation Adapter
  • Made in Wichita, Kansas From Aerospace Grade, USA Produced, Billet Aluminum
  • Compatible with LS truck, G8, and LS3 Camaro oil pans
  • Compatible with Factory LS Oil Pressure Sensor
  • Includes Adapter Orings bolts and 2 1/8 inch NPT Plugs
Bestseller No. 19
MSCRP LS Throttle Body Bypass Hose kit LS Coolant / Steam Port Crossover Hose Kits
  • Compatible with all GM LS series engines
  • Includes: 2 orings, 2 bolts, 2 coolant ports, 1 PTFE TAPE,and 1 steel braided hose .
  • Can be installed on the front or rear of the cylinder heads
  • Thread sealant NOT included
  • not compatible with FAST 102 intake manifolds
Bestseller No. 20
Brian Tooley Racing BTR Turbo LS Stage 4 Cam, Spring Kit with Titanium Retainers and Chromoly...
  • Brian Tooley Camshaft, BTR Platinum Dual Springs with Lightweight Titanium Retainers, and 7.400 Chromoly Pushrods.
  • Cam specs are 234/239 .612"/.610" 115+5 and comes a 3 bolt timing gear pattern
  • The Big Stick of the turbo cams!!
  • Springs: BTR Platinum Dual Spring Kit for LS engines using stock rocker arms. Includes dual polished springs, matching lightweight Titanium Retainers...
  • Pushrod Specs are: 7.400" Long 5/16 Chromoly .080 Wall Pushrods by Brian Tooley Racing. Highly recommended when upgrading Camshafts.

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Related Post:

FAQ:

Q: What size Turbo should you choose for your LS engine?

A: With an LS-based engine, the range of turbos you have to choose from is going to be different than other engines based on how the mill functions. “We typically don’t go any smaller than a 75mm turbine wheel setup on any LS platform for efficiency reasons.

Q: What engines can be installed behind LS engines?

A: Adapts all of these engines to TH350, 700R-4, 200-4R, 4L60 and Powerglide transmissions that originally came behind a non-LS engine (such as a SBC or BBC V8). If you’re installing a TH350 or 700R4 behind an LS engine, we recommend the use of adapter sleeve 57518346 which centers the torque converter hub into the LS crankshaft.

Q: Is it possible to convert an LS engine to th350/th400?

A: Adapting an LS engine to a TH350/TH400 is not only possible, but quite easy to do. Read more to see how with lots of pics! I want to clear up some confusion here. I did A LOT of research on bolting the newer LS motor to the older style TH400 transmission during my swap, most of which just confused me even more.

Q: Who are the experts on turbocharged LS engines?

A: To help provide the best information possible, we brought in Jonathan Ojczyk from Huron Speed, along with engine builders Jimmy Stray, Darren Smithers, and Shawn Hooper at the School of Automotive Machinists & Technology. This panel of experts has plenty of experience and knowledge to provide as it pertains to turbocharging an LS.