Let me preface this with I am brand new to tuning the LS2's but I have downloaded two separate stock '05 Corvette bin files from the repository and they both have a cylinder volume of 0.70819. 0.70819 x 8 = 5.66552 liters. My old C5 LS1 bin has the LS1 cylinder volume at 0.70821 which would appear to be correct (5.66568 liters).