When searching NAPA it showed the same part number water pumps for both engines. New One TFW 43025 and Remanufactured one WP 58177
Casting Number Size Year Engine Family
2202843 170 G
2205630 170 G
2463395 170 G
2264478 170 G
2463230 170 1965 G
— 198 G...
These guys have been around for 35+ years so must be doing something right . I haven't reassembled and ran mine with it yet so can't give 100% feedback. http://schneidercams.com/engineadditives.aspx