blocks
LR4, 4.8L = 1500 Trucks (1999-2006?)
LM7, 5.3L = 1500 Trucks, SUVs, Vans (1999-2006?)
LS1, 5.7L = Corvette (1997-2004), Camaro, GTO (2004)
LS6, 5.7L = Corvette (2001-2004), CTS-V (2003?-2004)
LQ4, 6.0L = 1500HD, 2500, 2500HD Trucks, Vans and Suburbans
LQ9, 6.0L = Silverado SS, Denali, Escalade
LS2, 6.0L = Corvette (2005-2007), GTO (205-2006), Trailblazer SS, CTS-V (2004-2007)


