its a bare BLOCK ONLY>............2 BLOT MAIN............i baught a 96 tahoe and the guy told me that the motor was bad and he gave me a new 350 2 bolt main that he got from chevy......i was going to build it but the tahoes moter is very strong......it only needed a fuel pump,,,,,,so im selling ths one i have here......... the block ..........its on a engin stand that goes with it and it rolles oround real easy......so if your looking for a 350 block thats NEW call 480-233-4650 gary smith