Guest Your Car is Slow Posted November 17, 2003 Share Posted November 17, 2003 See..now here is where the confusion lies....Ive always thought of the L99 as a separate motor from the LT1 (hence the different designation)...where the documentation claims the 4.3 is also an LT1. Ive personally never seen nor heard of a 4.3L LT1 Kind of like the LS1/LR4 scenario....noone claims the LR4 is an LS1 and vice versa simply because the share similar components. Quote Link to comment Share on other sites More sharing options...
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