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  1. 360 vs. 401 - The AMC Forum - Page 1

    Jul 10, 2021 · In stock form, what's the difference between a 360 and a 401 in terms of driving and living with...

  2. high performance 401 build - The AMC Forum - Page 1

    May 25, 2012 · I am going to be doing a performance based 401 to put one of the many bricklins I own and I'll...

  3. 401 engine identification - The AMC Forum - Page 1

    Jan 30, 2019 · I have finally gotten around to starting my AMC project. It is a 70 AMX BBO car that supposedly has...

  4. International 401 - The AMC Forum - Page 1

    Jan 15, 2014 · The guy told me it was a 401 out of an International truck and I didn't know the AMC was called it a 400 in that application. But, the 401 International (according to him) is an obsolete engine, …

  5. 401 Engine Rebuild - The AMC Forum

    Jul 30, 2013 · Hello guys,I bought a 401 engine here recently. It is a 77 engine out of a grand wagoner. After talking...

  6. 401 build - The AMC Forum

    Mar 21, 2025 · So I am very new to the whole engine building thing. Picked up a disassembled, mostly complete 401 last...

  7. AMC 401 Build Suggestions - The AMC Forum

    Nov 9, 2014 · Okay, so here's the deal. This is my first engine rebuild and I just bought an AMC 401 tonight...

  8. 401 has same HP while compression drops - The AMC Forum

    Nov 23, 2019 · Per Wiki, the 390/401 engine produce 340 HP from 69 to 71 while the compression goes from 12.2:1 in...

  9. 401 AMC stroker ( 443 cui ) horsepower - The AMC Forum

    Mar 6, 2012 · Just looking for some input on what horsepower numbers I should be expecting ?Engine: 401 Block4.0"...

  10. 401 build (Finally Finished!) w/pics - The AMC Forum - Page 1

    Mar 29, 2022 · I just got a nice running 401 out of a 76 Wagoneer and was wondering a few things maybe you can answer.I...