The water pump bolt holes don't line up the same (IIRC, I've slept a couple times since I mated them up), and the pump itself is cast totally differently. The pump has some bosses that need to mate up to the cover a certain way, and the cover has some bosses that need to mate up to the accessory bracket. Best way to show it is with a photo:





BTW, the intake you have isn't set up for EFI, is it? Mine is an EFI manifold but has the early style t-stat housing location. It doesn't play well with the Maggie AC compressor...

Clair