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Old 09-18-2009, 05:41 PM   #1
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Default Spring Hill Plant Builds 2 Millionth Engine

A new story entry has been added:

[drupal=3339]Spring Hill Plant Builds 2 Millionth Engine[/drupal]

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According to UAW Local 1853 Chairman Mike Herron, Saturn's former Spring Hill Powertrain plant built its two millionth GM L-850 Ecotec 4-cylinder engine at around noon this past Wednesday (September 16th). The Tennessee-built engine is used in General Motors vehicles sold worldwide.

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Old 09-19-2009, 02:35 AM   #2
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Default Re: Spring Hill Plant Builds 2 Millionth Engine

Charlie -

This article made me google the engine :

http://www.saabnet.com/tsn/bb/9-3/index.html?bID=113122
Quote:
The L850 engine program at GM (which was eventually branded the Ecotec) was designed to be a Universal block for 4 cylinder GM passenger cars. Short note: I worked for a few years for a Tier 1 supplier of internal engine components for GM, so I have some knowledge/background on the L850 engine program, though by no means extensive. It was planned for all of the GM brands at the time (late 90's) including Saab, Opel, and Lotus, along with Chevy, Saturn, Olds, and Pontiac to use this basic L850 block (yes it is cast Al, and I believe it is also lost foam cast, which was/is a Saturn innovation). Because this block was designed from the beginning to be used in robust applications, it benefited from relatively high design limits. It was engineered for turbocharged/supercharged applications at the get go (with handy features like passages for oil jet cooling of pistons, rather than splash lubrication).
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Old 09-21-2009, 12:56 PM   #3
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Default Re: Spring Hill Plant Builds 2 Millionth Engine

The Family 2 Ecotec engines built in Spring Hill are sand cast, not lost-foam.

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Old 09-22-2009, 04:17 PM   #4
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Default Re: Spring Hill Plant Builds 2 Millionth Engine

The 1st gen ecotec I have in my L series is lost foam cast.

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Old 09-23-2009, 09:32 AM   #5
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Default Re: Spring Hill Plant Builds 2 Millionth Engine

Quote:
Originally Posted by spork View Post
The 1st gen ecotec I have in my L series is lost foam cast.
You're correct. The Gen 1 block of the L61 was lost-foam. The Gen 2 block was upgraded to sand-casting for the LNF and LAF engines. The regular 2.4L is lost-foam cast though. The 2.2L is also lost-foam cast in Tonawanda.

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