if your block doesn't have the front mounted Distributor then the low mounts for a Gen 1 Small block should work fine. The only other true difference in the VorTec and Gen 1 is the bolt pattern for the intake manifold and no fuel pump . The heads are and block are drilled the same for accessories. A standard rotation water pump will work fine.

~ Craig
1958 Viking 4400
"The Book of Thor"
Read the story in the DITY
1960 Chevrolet C10
"A Family Heirloom"
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'59 Apache 31, 327 V8 (0.030 over), Muncie M20 4 Speed, GM 10 Bolt Rear... long term project (30 years and counting)

If you don't like driving yourTruck, you won't drive yourTruck..| Living life in the SLOW lane