im currently building a 350 sbc bored 30 over 2bolt main. I recently found a good set of vortec heads casting number 12558062. also I ordered a rebuild kit from summit racing for the engine with head gasket bored size 4.030. I was wondering if this head gasket will work for the vortec heads or will I have to get a new set. the part number for the kit from summit racing is sum-sbckit1-311. thanks in advance