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Topic: I hope this water pump is for my 1972 454 auto,PS, PB,AC

in Forum: C3 Engines

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I hope this water pump is for my 1972 454 auto,PS, PB,AC (1/2)
7/18/18 3:37pm

mike1972
Former Member
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Joined: 7/9/2018
Posts: 1

20M 3858284

what is the coding format for water pumps?

thanks

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Re: I hope this water pump is for my 1972 454 auto,PS, PB,AC (2/2)
7/18/18 9:46pm

Adams' Apple

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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 20128

It is the correct part #(3858284) for a big block of that era. Need to look for the casting DATE to determine if it is "correct" for the car, if you plan on having it Judged. Depending on the pulley used, the casting date may not be visible for judging, but it never hurts to have the correct one. Also, if you look closer, you'll see the "20M" is actually "2GM". Thumbs Up

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