[67Sedan2dr]

How do you know if you have one and what would be the effects if you used the wrong pump on the wrong block either way?

Just curious.

-Nathan

 

[ZZ69chevelle]

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.
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Steve Beuth

69 Malibu ZZ4-350
79 Trans Am
93 Camaro Z28
99 Silverado
Chevelle pics

Plan for the worst, hope for the best.

[This message has been edited by ZZ69chevelle (edited 07-09-2001).]

 

[jpete]

Do you mean reverse cooled or reverse rotation? Serpentine belt drives turn the W/P in the opposite direction as a V-belt. If you used a pump for one on the other type of drive, you'd get no coolant flow whatsoever.

 

[Guest]

Reversed cooled. Cool water is introduced to heads first then the block. This allows the compression to be at least a full point higher that a conventional system.