Late Mark IV 454 BBC Water pump flow question

6983 Views 2 Replies 3 Participants Last post by BillK, Mar 17, 2007

shooterpcb

Discussion Starter · Mar 17, 2007

has anyone used a 1989 or 1990 Mark IV 454 in a project acr or truck? I have been looking at water pumps and the references say the flow is in reverse from other Mark IV(65-87) water pumps. I am wondering if that is because of the external pulley system on 1989-91 454s or is it an internal design that is different? Every other major piece fits the similar on 1965-91 Mark IV 454s it seems except the long/short water pump.

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