stupid question possibly
You can tell the difference by the bottom of the intake.
LS6 intake is flat on the bottom, LS1 Intake has a shape to the bottom of it it.
http://www.ls1howto.com/index.php?article=5
Has a good photo of the bottom of each.
Last edited by Beer99C5; Jul 5, 2007 at 03:50 AM.

