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I have an '86 firebird 2.8.. but a service manual for an '85 firebird.. is there much or any difference between the '85 and '86 2.8 engines? I want to just use the '85 manual.
As I understand it, 85-89 V6 is the same engine, LB8. I have a genuine GM parts manual that covers 82-91, and it groups the LB8 engine more specifically by year. 85-87 is one of the groups, so they should be the same. Sometimes there are small variations, usually they are noted with "*VERSION 1" or "X YEAR ONLY." Here are the pages from the parts manual for your engine.
Last edited by JCMaedl; Nov 4, 2022 at 01:12 AM.
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