yes you can buy intakes. The intake ports are different, so the intake is different, and with the wider intake ports the pushrod was moved over, so you need 8 GM offset intake rockers...they are only like 8.00 each.
the intake ports on the l92's are rectangular, the ports on the stock head are cathedral shaped. But close to 300CFM out of the box is worth the cost of a new intake IMO
and yes, 6.0's come with the spacer from the factory it a 4l80e came behind it.
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