FYI - 1972 Corvette Water Pump Usage
Corvette 350 Engine
Picture # 1) 3991399 water pump for 1972 Corvette application was cast on the following days(H261,
H271, H301, H311, I171, I201, I211. A122, C82 and C92)
Picture #2) 330813 water pump was cast starting in mid-April 1972 with transition in May 1972 from
the 3991399 until the 3991399 stock was depleted. This 330813 water pump is super rare.
Picture #3) The unique boss on the 330813 which was not machined for a bypass like later 330813
pumps after 1972 Corvette production that had the boss tapped and a square plug installed.
Corvette 454 Engine
Picture #4) 3992077 water pump used throughout 1972 Corvette production.
Your comments please.
Bill Mock #93MVC-008S.JPGMVC-009S.JPGMVC-010S.JPGMVC-011S.JPG
Corvette 350 Engine
Picture # 1) 3991399 water pump for 1972 Corvette application was cast on the following days(H261,
H271, H301, H311, I171, I201, I211. A122, C82 and C92)
Picture #2) 330813 water pump was cast starting in mid-April 1972 with transition in May 1972 from
the 3991399 until the 3991399 stock was depleted. This 330813 water pump is super rare.
Picture #3) The unique boss on the 330813 which was not machined for a bypass like later 330813
pumps after 1972 Corvette production that had the boss tapped and a square plug installed.
Corvette 454 Engine
Picture #4) 3992077 water pump used throughout 1972 Corvette production.
Your comments please.
Bill Mock #93MVC-008S.JPGMVC-009S.JPGMVC-010S.JPGMVC-011S.JPG
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