i have a stock ls bottom end with a built ls head. head has 1 mm oversized valves, 2k$ worth of port work , custom cam, full valvetrain. was built and ported at starracing in americus. also have a gsr tranny to go with it. will let it all go for $1200 with 4 puck cluctch act heavy duty pressure plate and astreet lite flywheel. it is still all put together in my car port.