water pump I.D.
July 14th, 2021, 03:39 PM
#4
Registered User
Join Date: Sep 2011
Location: South Central, KY
Posts: 1,294
Don't believe that pump is factory correct for anything pre 1972. I think they started using the "4" pump on the early 70s? Try to google the number cast into housing for a more positive answer.
July 14th, 2021, 03:50 PM
#6
Old(s) Fart
Join Date: Mar 2007
Location: Northern VA
Posts: 47,601
412265 is just the casting number. That same casting was used to build different P/N pumps for different applications, all were 6.1" pumps. It could have come with one bypass outlet or two. The two outlet pump P/N was 556283, with applications as follows:
1975-1982 260 with A/C
1980-1988 307 with A/C
1978-1985 350 diesel
1973-1980 350 with A/C
1977-1979 403 with A/C
1973-1976 455 with A/C
1975-1982 260 with A/C
1980-1988 307 with A/C
1978-1985 350 diesel
1973-1980 350 with A/C
1977-1979 403 with A/C
1973-1976 455 with A/C
July 14th, 2021, 04:53 PM
#7
Registered User
Join Date: Feb 2013
Location: Phoenix, AZ
Posts: 14,072
Thread
Thread Starter
Forum
Replies
Last Post
Nor Cal Andy
Small Blocks
1
March 20th, 2011 04:03 PM
