Rick,
Thanks for the information. I have a couple of questions on your suggestion. First do you have a photo? or Drawing? My pump is a Weiand. The impellers look like stock. It's been a while since I actually looked at the impellers. Its supposed to be high flow, which means that the holes may not be in the impeller compared to stock one. I will have to remove it or find a photo or contact Weiand to know.
I don't think it makes any difference, but I have a 72'+ type Weiand WP on my 68' block. This is so that the brackets would work with the power steering and alternator set up that came with my kit. The bolts work and it does not leak. No problems with water in the
oil etc.
Back to the mod. Pardon my lack of understanding. Is the metal circle plate mounted to the the impeller body? An it just close the holes? I'm guessing i need to drill holes in the impeller to pop-rivet the metal disc to the impeller. or do I need to get real rivets and make sure they are as flat as I can get them when done?
Does the metal disc need to be larger than the diameter of the impeller? Like out to the edge of the gasket?
Thanks,
Zack