Talk:AMC straight-6 engine

Edits

I'm going to be editing this page shortly. I have been publishing an AMC magazine for eight years now (http://farna.home.att.net/AIM.html), and researched the history of the Nash/AMC straight six for an article. Yes, the two are tied together! I don't know how to lay this out yet, but there are seven or eight iterations of in-line sixes along the same lines. The three used by AMC are actually the last three, but have direct ties with previous Nash designs. I could find no direct ties with Hudson sixes, though Hudson flat head sixes were used by AMC in the 55-56 models (all 57 Hudsons used the AMc GEN-1 327 V-8).

I'll probably list these engines as I did for my article -- with "Series Numbers" rather than as "Generations". So the ones used by AMC would be Series 5, 6, and 7 (or 6, 7, and 8... I'll have to check!). Minor alterations are listead as Series #A, Series #B, etc. This means I'll also have to write an article on Nash In-line sixes and tie the two together. I'm open to any comments, or if someone can think of a better way.

—The preceding unsigned comment was added by Farna (talk • contribs)} on 12:20, 2 November 2005.

We need to add that the L-head engine goes back to the 1941 Nash 600 and was in the early 50s Statesman (in smaller displacement).

Ken D. 69.115.77.192 (talk) 21:43, 7 August 2008 (UTC)

Hi,

I believe there may be an error/discrepancy in the first section.

The 52-54 Nash Ambassadors had the inline six with overhead valves, single side draft carburetor and the side mounted water pump branded the "Jetfire".

Also the Nash Healeys of that era had the inline six with overhead valves, two side draft carburetors, and the side mounted water pump branded the "Dual Jetfire". The dual carburetor version which had a different head may have been unique to the Healey.

This would seem to contradict the statement that the transition from a side mounted water pump to the front mounted water pump occurred with the introduction of overhead valves. — Preceding unsigned comment added by 68.225.89.245 (talk) 16:22, 18 October 2014 (UTC)

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Add additional manufacturer

Change production manufacturer. AMC did produce the engines up to 2006. The last in-line 6 family that AMC was a 4.2l. When Chrysler took over the jeep brand, they continued using the surplus of AMC engines and then changed displacement to the 4.0l. 98.25.88.133 (talk) 20:58, 11 September 2022 (UTC)

Hello 98.25.88.133,

Please check the timeline for the introduction of the 4.0 L version of the AMC engine. This fuel-injected engine was developed by AMC with Renault and it debuted in 1986 to replace the outsourced V6 starting in the Jeep Cherokee XJs (here and here). This was before Chrysler acquired American Motors in 1987. There is nothing to support the idea of "surplus" AMC engines. The 258 CID (4.2 L) carburated version continued production through the 1990 Jeep Wrangler YJ models. In other words, there was never a stockpile of engines to use over four years of Wrangler production. Chrysler had nothing to do with changing the displacement of the AMC-developed 4.0 six-cylinder engines. Just like AMC regularly made improvements to its engines, the 4.0 received updates including the Chrysler multi-port fuel injection system that replaced the Renix system in 1991. I hope this helps explain that AMC was the original manufacturer of the 4.0 engine until Chrysler took over AMC. Cheers - CZmarlin (talk) 18:43, 14 September 2022 (UTC)