Not exacly correct, The engine is a one of a kind found only the 04 GTO. The 04 GTO LS1 was built in GM's Canada engine plant and is based on the high output LS1 found in late model F-body's and standard corvettes, Lutz didn't think it had enough low end tourch so they added the ZO6 cam, but not the high flow ZO6 heads.
Close but not exact, see above.
[ 02. April 2005, 05:34 PM: Message edited by: High Octane ]