Bulent Aliev wrote:

Hi Paul,
I was told that 1995 and up engines come with aluminum water pump. I
wander if someone knows what will be the weight difference and if they
will fit older engines. In short if it's worth it to use one?
Bulent

I think the aluminum pumps came out long before that.
The old cast iron pumps weighed about 19 pounds according
the Gerry Hess. Tracy mentioned the 13B pumps were all
aluminum. R-Beat has an aluminum racing pump for sale
in the catalog. 

We need to find the source for that 
sprint car pump Jim Mederer is using on the R Beat 900 HP 
three rotors. Looks ideal for high continuous HP Aircraft 
use. I need to also look in Granger. Could be something in 
there.

PL

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