Are all BBC circulating pumps the same?? Need to get one for a boat I'm picking up tomorrow and planning to install a closed cooling system on...
The only #s the seller got me off the motor were 10060286 and I'm pretty sure that's the block casting # and not the Merc serial #.
But I've seen a few sites sell only 1 circ pump for BBC, so think they're all the same???

TIA - Chris

they are not all the same,some are left hand rotation,and some are right hand rotation,dont ask me how i know this , lol.

LOL - ok, well if someone is selling a non-directional pump which I presume means bi-directional, I should be good, no?
Either way, the mounting flange and dimension of the WP are the same???

Thanks again!

it needs to be a short pump

how do you know ? I didn't know . what uses a left hand rotation

they are physically the same,the difference is the impellor in the pump.

So a non-directional pump will work!?

Not sure how to fnd out what direction I need otherwise??

10-4 on the short style! THX

There is one from Mercury that is for most big blocks. I know the 525 uses a different one.