Aluminum water pump weight (sbc &bbc)

[69427]

Was digging around through some spare parts and I got to wondering what the weight difference was between bbc and sbc aluminum water pumps. I thought if the weight difference was significant enough I would entertain the idea of trying to adapt a sbc pump onto my bbc. I put each on my scale and only got about a 1.6# difference (5.8#, 7.4#). Boy, after making some adapters I'm speculating the net difference wouldn't be much. Oh well. I did notice that the stamped steel impeller cover on the bbc pump weighed 13 ounces. I grabbed a chunk of eighth inch aluminum of the same area and it weighed 5 ounces, for a half pound difference (not much, but it's way up front). I put a straight edge across the back of the pump and it cleared the impeller, so perhaps a simple lighter cover might work. However, it would have saved me some work if I had thought about this a couple years ago when I was putting the engine together.

 

[mrvette]

Mike, GOD I wish we lived close by.....

U almost as nutz as me......


:shocking::clap::clap::beer:

 

[Twin_Turbo]

or break out the check book and buy a Horstman magnesium BBC water pump. That guy Dr L88 over on Corvette Foramen has one

 

[69427]

or break out the check book and buy a Horstman magnesium BBC water pump. That guy Dr L88 over on Corvette Foramen has one

Yeah, that's right. I occasionally see posts where he's talking about some rare old pieces. Something tells me those things are probably a pretty hefty $/lb weight reduction option.