new top end head kit for small block Chevrolet recommended by and bought from Jegs. Kit includes Pair 0f Pro Maxx Series closed chamber aluminum heads Completely Assembled . Set of sixteen Comp Cams Hi-Tech pushrods. Set of sixteen hydraulic valve lifters by Howards Cams. Set of performance Small Block Chevy head bolts by Jegs Performance. Pair of Performance head gaskets by Jegs Performance. Two sets 16 of NGK non resistor V-Power Racing spark plugs. All parts are new and are specifically recommended by Jegs, to be used with these aluminum heads.