Team Chevelle banner

Late Mark IV 454 BBC Water pump flow question

6979 Views 2 Replies 3 Participants Last post by  BillK
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.
1 - 1 of 3 Posts
Correct. Anything with a serpentine belt system uses a reverse rotation water pump. Except for that anything Mark IV will work.
1 - 1 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.