The Stovebolt Site Forums The Shop Area Engine Shop Vortec engine in 70 Chevy / Waterpump ?

Im putting a 350 / 330HP HO gm crate engine in my 70 chevy tomorrow. I was told that I had to get a new water pump because vortec engines need a water pump that runs backwards in relation to the 307 engine I have now. When I went to get the water pump, the guy in the shop said as long as I was using the same pulleys on the waterpump and alternator, I could use the water pump I have, (it's only three months old) Can anybody confirm this? The guy told me that the cooling would work the same.?????? I don't want to mess this up. Also I want to put new shocks on, but know nothing about them. I have a long bed and dont want to drop the truck. If anything I'd like to raise it a couple inches. I currently have OEM shocks and would like to put something in that's good, but not too expensive. I appreciate any suggestions.

Scott

Thanks

Nope, I think your information came from someone who was confusing the late-model LT-1 engines.

The 350 H.O. is a traditional small-block Chevy. The only thing odd about the vortec heads is the late-model intake manifold bolt pattern.

the engines with a serpintine belt require a backwards waterpump.if your crate engine was set up for a serpintine belt you need to change the pump.