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I pulled a 5.7L out of 1998 suburban to have an engine with the Vortec head and am fitting it into my 1994 K5 Blazer using the GM Performance TBI Vortec Manifold. Anyone done this one? Do i need to ensure the bypass from manifold to water pump is installed? Any problems to watch out for?:sweat:
 

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I pulled a 5.7L out of 1998 suburban to have an engine with the Vortec head and am fitting it into my 1994 K5 Blazer using the GM Performance TBI Vortec Manifold. Anyone done this one? Do i need to ensure the bypass from manifold to water pump is installed? Any problems to watch out for?:sweat:

It's easier to drop back and use the LO5 water pump (1987-1995). This keeps all the vehicle connections and the bypass the same as what you have. The only thing that sometimes crops up is sealing the old bypass hole(s) in the lower right (passenger) side horn if either the block's or pump's hole doesn't have a match. If a hole is exposed just tap it and screw in a plug.


Bogie
 
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