Gen III LS Engine to AMC Transmission Adapter

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Your Price: $549.00

Not for Sale.

Part Number:374AMC-3

Transmission

Description
Customer Reviews
Questions and Answers

Our Gen III LS Engine to AMC transmission adapter is perfect for customers that want to retain their factory AMC transmission and transfer case, but want the LS style engine. This kit will work with the AMC TH400 (1974-1979 style without factory spacer) and TF727 transmissions, as well as the TF904/909/999 and AW4 models.

This plate style adapter is precision laser cut and machined. Kit includes the adapter, flexplate, fastening hardware and instructions. It also features offset dowel locators and fastening points to help ensure long transmission life. The adapter is plated in black zinc for corrosion resistance.

THESE HAVE BEEN DISCONTINUED.

Q: Will this fit the Vortec 5.3L? I keep reading at various sites that there is a difference between LS and Vortec engines, but that won't affect fitment of this adapter will it?

Asked by: Scott - 1/22/2018

A: Yes, yours is a Gen III Engine (also called Vortec) and this kit will fit properly.

Was this answer helpful? 2 of 2 Customer(s) found this Answer helpful.

Answer provided by: Ryan (1/23/2018)

Q: What would the postage be to melbourne Australia on this item? thanks mick

Asked by: Mick Thomson - 9/1/2017

A: You can add the item to your shopping cart, then click View Cart, then enter your country, state and postal code to see shipping rates.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (9/5/2017)

Q: I'm assuming this adapter comes with complete install instructions. Would it be possible to get a PDF prior to placing an order and are these kits in stock and ready to ship? Thanks.

Asked by: Blake - 10/30/2018

A: These are typically in stock. Regarding the instructions, due to the proprietary nature of the products, the installation instructions are only supplied with the kit when purchased.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (11/5/2018)

Q: What is the thickness of this adapter? Do you know if this adapter will work, with the bolt in motor mounts you offer, to locate an ls engine, without moving the transmission back?

Asked by: Andrew - 3/19/2019

A: This will work with our bolt-in adapters, but you'll have to shift the transmission slightly. The only way to keep the trans in the same location with this adapter is to use our weld-in mounts, so that you can adjust the placement of the engine.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (3/20/2019)

Q: When will the aw4 adapters be in stock?

Asked by: Jacob - 12/10/2019

A: Per the product page note: THESE HAVE BEEN DISCONTINUED.

Was this answer helpful? 0 of 1 Customer(s) found this Answer helpful.

Answer provided by: Ryan (12/11/2019)

Q: Any way I could get one of these anymore for an AW4 transmission?

Asked by: Aaron - 4/22/2020

A: These were discontinued by the manufacturer and are no longer available.

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Answer provided by: Ryan (4/22/2020)

Q: This kit seems to be different design than the 716131-V from AA. Which of these seems to be the preferred adapter for an AMC727 to Gen3 LS? Is this the Novak kit? I thought it was discontinued?

Asked by: Jim - 5/13/2020

A: This one was made by Novak and has been discontinued and is no longer available. The AA one we sell is the only current one available, and does a great job of mating them.

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Answer provided by: Ryan (5/14/2020)

Q: I am wanting to purchase this adaptor to put an LS1 into my 1995 Jeep cherokee. Will this suit my 1995 Cherokee AW4 automatic ?

Asked by: Jack - 9/5/2020

A: This item is discontinued and no longer available.

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Answer provided by: Ryan (9/7/2020)

Q: Hi I am doing a gen3 ls swap into my 79 Cherokee Cheif, 304 turbo 400. I see this says discontinued, is that correct? If so where can i go for that kit? Thank you for your help

Asked by: Gary Minor - 9/6/2020

A: They are indeed discontinued and no longer available. No one else makes a kit for that swap.

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Answer provided by: Ryan (9/7/2020)

Q: This kit say not for sale ? Does it mean no longer available ? Or is special order or is there anywhere else its available ?

Asked by: Leonard - 7/26/2021

A: This item is no longer available. Email [email protected] with your engine and transmission combination, and he'll see if he can advise.

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Answer provided by: Amanda (7/27/2021)

Fits:All with Gen III LS Engines
Laser Cut, Machined Steel
Precision CMM mapped and CNC-machined dowel locators
Modified Flexplate Included
Spacers and Fasteners Included
Compatible with AMC TH400 (1974-1979 style without factory spacer), TF727, TF904, TF909, TF999 and AW4 Transmissions