You can't really mix them up. The water pump on a reverse flow engine is gear driven off the cam. The LT1/LT4 is reverse cooled, and it doesn't have a traditional provision for a distributor either. It's "optispark" is mounted in front of the timing cover, and is crank driven. As far as I know, only the LT1, and LT4 engines were reverse cooled. these are found in 4th gen F bodys from 93-97, and corvettes from 92-96. They were reverse cooled to prevent detonation caused by increased compression.
69 Malibu ZZ4-350
79 Trans Am
93 Camaro Z28
Plan for the worst, hope for the best.
[This message has been edited by ZZ69chevelle (edited 07-09-2001).]