89 LB9
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Joined: May 2002
Posts: 278
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From: Quebec
Car: 94 Firebird
Engine: 3.4L
Transmission: t5
89 LB9
I'm about to buy a 89 Trans Am with an automatic LB9, now when I look in the tech board there are 3 different LB9 for 89, what's up with that? why is there so much difference in the numbers... is it because of heads and exhaust?
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Joined: Aug 2006
Posts: 28
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From: Kansas City
Car: 1990 IROC-Z
Engine: 305
Transmission: 5 Speed
Re: 89 LB9
I'm not 100% sure on this, but I believe the 5-speeds had a higher horsepower rating because of a bigger cam, and the dual catalytic converter cars (GU9 i think?) had a few more ponies too. At least this is my understanding.
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