If I am not mistaken it is just the 2 center bolt holes on each side that are at a slightly different angle. Nothing a little careful drill work can,t handle. Vortec heads are definitely the way to go.
'87-'95 heads are like this, the ports are the same shape/size as the older heads though. Vortecs are taller and my understanding is standard ports require too much cutting to get them to match a Vortec head.maliburon said:If I am not mistaken it is just the 2 center bolt holes on each side that are at a slightly different angle. Nothing a little careful drill work can,t handle. Vortec heads are definitely the way to go.