Build Date Question
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Junior Member
Joined: Jun 2013
Posts: 14
Likes: 0
From: Chi-Town South Suburbs
Car: 1989 IROC-Z
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.70 9-Bolt
Build Date Question
I've been getting really curious about my 89 IROC lately and I'd like to know when it was built. It's turning 25 in 2014 and I'm the type to wish my car a happy birthday. Anyways, the build date tag on the radiator support says, "13 4340". I did learn some cool news about it yesterday when I ran my RPO codes, it's one of 2,597 to get a CD player in 1989. For all wondering, the car used to belong to a member here, ls6iroc.
Thread Starter
Junior Member
Joined: Jun 2013
Posts: 14
Likes: 0
From: Chi-Town South Suburbs
Car: 1989 IROC-Z
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.70 9-Bolt
I was thinking more of the exact date. I guess my best bet is just trying to find the build sheet then.
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xbmx89
South Central Region
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Oct 31, 2015 10:59 AM









