hi, 
first post here but I'm always coming up with bad ideas and want to make sure i do them with the best possible outcome. I'm wanting to remove weight from a y-block. I'm going to be getting a sonic thickness tester and was wondering what areas of the block can be thinned or removed, what minimum thickness i should be looking in certain areas(not just for weight loss but for reliability, deck, bore...). currently removing excess bolt bosses, the weird pieces on the corners by the deck, removing camshaft eccentric, offset weight, fuel pump, cleaning casting flash inside and out, plugging heat crossover and trimming back the flanges on b intake and heads, using headers instead manifolds. maybe coming up with a new timing cover and using remote water pump. i know mummert heads intake and timing cover would be a huge savings, but I'm seeing what i can fabricate or get cheap. got idea from lsm advertising 35-70 pounds off blocks. I'm not expecting those kinds of numbers just from the block but be interesting to see. thanks
Seth