1967 L68 400 HP 427 with 3X2, standard internal dimensions. VIN T0109JC 720859x. OBO, Purchased 6/1968 from wrecked original car that was totaled w/ 5k miles, was installed in 56 Chevy till recently, now has 10k mile. Email John.mcilvoy@aol.com for more detail information. NCRS member #885