Let's see . I dropped the LS1 out of my 02 Z28 , bought it from an auction , on 11/17/12 . Pulled the Z motor and trans. out on the 22nd . Dropped the LS1 in on the 23rd . Reworked the fact. harness and installed it back on the motor , mounted the ECM , installed Vette fuel filter , mod. both dipstick tubes on the 12/2/12 . Now , i'm waiting on headers .