1969 water pump

[Forrest J.]

My 69 corvette was built in Nov. 69 and has a 427 400h.p. w/a.c.,p.s. The judging manual states water pump part number to be 3856284. I do not think this is casting is correct for my build time. Manual is 3rd edition. Any info. appreciated.

[Joe L.]

Re: 1969 water pump

My 69 corvette was built in Nov. 69 and has a 427 400h.p. w/a.c.,p.s. The judging manual states water pump part number to be 3856284. I do not think this is casting is correct for my build time. Manual is 3rd edition. Any info. appreciated.

Forrest------


Yours almost certainly was originally equipped with the GM #3940960.

One thing to keep in mind, though: the 3856284 casting is easy and cheap to find and obtain. The 3940960 is a lot more scarce. I think that either pump would probably pass judging since I'm not sure the casting number can be seen and/or is judged.

[Forrest J.]

Re: 1969 water pump

Joe, Thanks for the info. on 69 427 water pump.