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3.9L LZ9 87 IROC-Z28 - GT4088 turbo
(Topic in the Member's Rides and Introductions forum)
09-02-2015, 06:38 PM
3.9L LZ9 engine internal upgrade & performance?
(Topic in the Pushrod Performance forum)
05-05-2020, 01:17 AM
3100 3400 BLOCK differences.....1993 Cavalier.
(Topic in the Engine Swap forum)
04-20-2010, 01:38 PM
3100 - Goal: Mild gains over stock N/A
(Topic in the Pushrod Performance forum)
09-26-2007, 05:48 PM
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