Best Ls To Th400 Adapter in 2022 [*Top Picks*]

Looking for the best ls to th400 adapter on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

7735 Reviews Scanned

  • GM Gen III LS V8 Flexplate Adapter Kit to TH350/TH400/700R4 Transmission
    Bestseller #1
    GM Gen III LS V8 Flexplate Adapter Kit to TH350/TH400/700R4 Transmission (1277)
      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
  • Flexplate Adapter Spacer LS Swap Torque Stall Converter Hub Crankshaft Adapter Compatible with TH350 TH400 Transmission LS Flexplate Adapter Spacer for TH350 TH400 Conversion Swap to LS2 LS1 LS3 LSX
    Bestseller #1
    Flexplate Adapter Spacer LS Swap Torque Stall Converter Hub Crankshaft Adapter Compatible with TH350 TH400 Transmission LS Flexplate Adapter Spacer for TH350 TH400 Conversion Swap to LS2 LS1 LS3 LSX (165)
      👍High quality: Made of hardened high-quality iron, rust-proof, durable, easy to install, and direct replacement. 👍Features: Good ductility, conductivity and thermal conductivity, and strong ferromagnetism. 👍Function: The gasket aligns the protruding part of the transducer with the curved flexible plate. 👍Compatibility: Suitable for 1998-2004 LS1 engines using TH350 or TH400 gearboxes. Stable characteristics and high reliability. Perfect match with the original car. 👍Service Guarantee:Please rest assured of our products. If there is any quality problem, please contact us in time, and we will try our best to reply you as soon as possible.
  • LS Swap Torque Stall Converter Hub Crankshaft Adapter, LS Flexplate Adapter Spacer for TH350 TH400 Conversion Swap to LS2 LS1 LS3 LSX
    Bestseller #1
    LS Swap Torque Stall Converter Hub Crankshaft Adapter, LS Flexplate Adapter Spacer for TH350 TH400 Conversion Swap to LS2 LS1 LS3 LSX (277)
      1. Fit for : This adapter spacer is for use on 1998‑04 LS1 based engines using a TH350 or TH400 transmission while you use a curved flywheel. 1. Fit for : This adapter spacer is for use on 1998‑04 LS1 based engines using a TH350 or TH400 transmission while you use a curved flywheel. 2.Product Detail: Built to meet standard specification, strictly follow factory quality control.Size is approx. 50x26mm/1.97x1.02in. Package included 1 x Flexplate Adapter Spacer. 3. Premium quality : This Flexplate Adapter Spacer is made of Superior Steel material has great wear resistance and ageing resistance. 4. Install Instruction: Easy and simple to install, direct replacement, to bring you much convenience.Installs into the LS crankshaft to provide support for torque converter hub.The spacer will center the nose of the converter to the curved flexplate.
  • Flexplate Adapter Spacer,LS/LT Crankshaft Hub Adapter for Torque Converter,Compatible with LS1 / LT1 GM TH400 TH350 Transmission,Flywheel LS2 LS3 LQ4 LT1 LS7 5.7 6.0 5.3 Camaro Firebird
    Bestseller #1
    Flexplate Adapter Spacer,LS/LT Crankshaft Hub Adapter for Torque Converter,Compatible with LS1 / LT1 GM TH400 TH350 Transmission,Flywheel LS2 LS3 LQ4 LT1 LS7 5.7 6.0 5.3 Camaro Firebird (3)
      【Compatible Models】Compatible with GM LS series Xtreme Duty Flexplate with 4mm thick center plate, suitable for GM automatic transmission with 1998-2004 LS engine using TH350 or TH400 transmission. 【High Quality Material】The aluminum alloy crankshaft adapter has good ductility, electrical conductivity and thermal conductivity, and has strong ferromagnetic properties. Stable characteristics and high reliability. Perfect match with the original car. 【Easy to Install】Crankshaft Adapters allow you to bolt GM automatic transmissions to the engine, or older GM automatic transmissions to LS series engines. Just plug in the rear of the crankshaft. If using a curved flex board, you will need this adapter spacer to give you the correct distance and guide dimensions. 【NOTE】Part of this ls flex plate adapter prevents damage to the input shaft of the transmission when replacing the transmission. Pilot bushing hole changes and flex plate/flywheel configuration are important for interchange. [After-sales guarantee] After you receive the product, if the product is damaged, lost, unusable or any other questions, please feel free to contact our customer service, we can refund you or resend new products to bring you more satisfaction shopping experience
  • ICT Billet LS Swap Torque Stall Converter Hub Adapter Transmission Crank LS1 / LT1 TH400 TH350 Flywheel LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 551165
    Bestseller #1
    ICT Billet LS Swap Torque Stall Converter Hub Adapter Transmission Crank LS1 / LT1 TH400 TH350 Flywheel LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 551165 (896)
      Adapts Powerglide, 4L80E, TH400, TH350, 700R4, 4L60, 4L60E (from non LS engine) torque converter snout to LS/LT engine See our LS/LT Crankshaft and Flexplate guide to determine where to place your crankshaft hub adapter Made in Wichita, Kansas from USA produced steel Compatible with all LS and LT series engines Gen 3, 4, 5 (except 99-00' 6.0L does not require this) Includes: 1 adapter ring (inserts into rear of crankshaft)
  • Classic Garter Ties (Tartan Red)
    Bestseller #1
    Classic Garter Ties (Tartan Red) (540)
      Merino wool & acrylic blend knit garter provides stretch and comfort decorative fringed ends standard length approximately 36" (lengths may vary) made in Scotland
  • Small Block Chevy All Inclusive Serpentine Kit for 283 302 305 327 350 400 SBC Engines
    Bestseller #1
    Small Block Chevy All Inclusive Serpentine Kit for 283 302 305 327 350 400 SBC Engines (73)
      All Inclusive Kit includes everything you need for a quick and easy installation! Belt, Pulleys, Bracket, Tensioner, AC Compressor, Alternator, and Power Steering Pump with Remote Reservoir Uses GM style Type 2 Power Steering Pump with a billet remote reservoir Backed by CVF Racing's Industry Leading Lifetime Warranty and #1 rated tech support! Fits various styles including Camel or Fuelie heads and Vortec. Also works with mechanical or electric fan/fuel pump. Give Your Engine the Strong American Made Brackets and Pulleys That It Deserves!
  • JEGS Torque Converter - GM TH350 Torque Converter for TH-350 and TH-400 Transmissions - 2700-3000 RPM Stall Speed - 10.75 Inch Flexplate Bolt Pattern - 500 Horsepower Maximum Applications
    Bestseller #1
    JEGS Torque Converter - GM TH350 Torque Converter for TH-350 and TH-400 Transmissions - 2700-3000 RPM Stall Speed - 10.75 Inch Flexplate Bolt Pattern - 500 Horsepower Maximum Applications (2159)
      Performance torque converter for street and track use for improved launch and acceleration Made in the USA using high quality materials and assembly. Economically priced for performance on a budget. 2700-3000 RPM stall speed to match your engine and camshaft needs. Ideal torque converter for small block applications up to 500 horsepower without nitrous or super/turbochargers. GM TH350/TH40030-Spline 10.750 in. Bolt Circle. Stall Speed: 2700-3000 RPM. Please Note: Converter diameter may vary based on core availability. Does not fit transmissions that require lockup or clutch converters. Small (10.75 in. diameter bolt circle) flexplate or dual pattern flexplate required. For big block applications, use JEGS XHD converters.
  • Holley - 550-903 Terminator X Ls1 24X/1X Mpfi Kit
    Bestseller #1
    Holley - 550-903 Terminator X Ls1 24X/1X Mpfi Kit (21)
      Real-Time fuel map learn, takes the guess work out of tuning your base fuel table Terminator X systems utilize the Bosch LSU 4. 9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control The included 3. 5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine
  • A-Team Performance - Intake Manifold 102mm Throttle Body Fabricated Metal Sheet - Compatible with Chevrolet GMC Pontiac LS LS1 LS2 LS6 Silver
    Bestseller #1
    A-Team Performance - Intake Manifold 102mm Throttle Body Fabricated Metal Sheet - Compatible with Chevrolet GMC Pontiac LS LS1 LS2 LS6 Silver (879)
      Intake Manifold 102mm Throttle Body Fabricated TIG Welded Aluminum Metal Sheet Compatible with Cathedral Style LS1 LS2 LS6 4.8/5.3/5.7/6.0 Heads Includes: Black Intake Manifold, Black Throttle Body, Black Fuel Rails, and Fuel Crossover Line; Also includes Gaskets and Hardware This intake is about 2" taller than stock Black 3mm Sheet Metal Aluminum
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Best ls to th400 adapter to Get in 2022: How to Pick the Right One

We know that finding the best ls to th400 adapter is not an easy task. Modern manufacturers offer a truly massive selection from which one can scatter eyes. Check out our guide to make the right choice.

Find the Best ls to th400 adapter: Quick Buying Guide

The main thing is not to rush and buy the most expensive or, on the contrary, the cheapest, newest, or best-rated ls to th400 adapter. It's necessary to find out what is right for you. Otherwise, you will simply waste your money and be unhappy with your purchase.

First of all, ask yourself, what should I look for in a ls to th400 adapter? Indeed, there are such features that you might need, while other buyers might not even pay attention to them. Define the main parameters that you should check and analyze first. Ask, who makes the best ls to th400 adapter? Which models are popular with buyers and why? Which products have certain benefits and drawbacks? Answering these simple questions will help you narrow down your search and discard inappropriate options right away.

You can create a list or even a table to make comparing main factors more comfortable and visual. Typically, within their ls to th400 adapter comparison, most customers pay attention to:

  • technical details and specifications provided by the manufacturing company;
  • ls to th400 adapter brands (their reputation, history, and liability);
  • customer reviews and ratings;
  • value for money;
  • warranty and price, etc.

While you can find out the exact data about a particular item from product information, which is usually in the public domain, you can only get subjective data about the comfort of use and convenience if you find and compare ls to th400 adapter reviews from real buyers. While they are not always fair, they can still give you more insight into the pros and cons and whether you should buy this or that stuff. Just stay away from untrustworthy testimonials that look like paid texts.

Of course, the complete list of essential parameters does not end there, and you probably have something to supplement it with. If you are a responsible buyer, conduct comprehensive research on all criteria that interest you. Only in this case can you be sure that you will not spend your money in vain. Of course, writing your own ls to th400 adapter ratings can be time- and energy-consuming and, let's be honest, boring, so you can trust our ls to th400 adapter buying guide.

How We Pick and Rate Each ls to th400 adapter

When compiling this top ls to th400 adapter list, we tried to be unbiased and comprehensively analyze all the characteristics of goods, as well as when writing other ratings. It implies the use of specialized software based on artificial intelligence. Automated algorithms help us quickly analyze the given parameters and determine the best and quality ls to th400 adapter. Thus, we identify a list of top models in different categories so that every reader with various requests, tastes, and budgets can find the model that suits them the most.

Honesty, transparency, and impartiality are at the core of how we select products and how we test each ls to th400 adapter. We strive to cover the largest possible number of items, manufacturers, customer ratings, and so on so that our list includes both premium and affordable models, both time-tested and the freshest products. Of course, buyers' tastes and needs, as well as the market situation, change from time to time. To keep up with the times, we regularly update our list and try to offer only the latest collection.

Please share your opinion about searching and choosing the best ls to th400 adapter. Which parameters are the most important to you? Do you trust customer reviews? Or do you prefer to check all the information by yourself? Tell us which ls to th400 adapter is the best for you and why in the comments below.

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