Search results for query: *

If the fish were taking oxygen from water molecules, then the end result would be a release of hydrogen. Here is a better explanation than mine: http://tellmewhyfacts.com/2007/07/where-does-oxygen-come-from-that-fish.html

I believe fish scavenge oxygen that is dissolved in fresh water and sea water with their gills. I am not a biologist, but that is my understanding until someone corrects my interpretation of things.

Let me clarify, the plain chrome direct connection valve covers for the small block have the holes punched in the center/middle. I do not know for sure where the holes are punched in the R/RB valve covers of the same vintage.

FYI: The chrome valve cover without "Direct Connection" logo from March 1, 1977 direct connection catalog: B engine P4007542 right side ...43 left side A engine P4007102 right side ...03 left side Note: These have the PCV and breather holes in the center/middle of the valve cover, not on the ends.

Have they begun to split open at the bolt holes yet? (that is normally the weak spot)

Those "DC" stampings must be a newer version (anyone know when they arrived on the scene?), some of us do prefer the original (plain) style.