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My friend is thinking about building an engine for his 72 Chevy pickup. I was wondering, what do you have to change to make a sbc into a vortec? You need to put vortec heads on and a steel crank in, right? Maybe not? thanx in advance!
 

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It depends on what you mean, a entire vortec engine? or just the heads? Vortec was just a name adopted by GM in the late 80`s, the heads on these models show up on Ebay as "Vortec" heads and they aren`t. My engine came out of a 96 Z71, it has a cast iron crank, the crank type has nothing to do with it being a Vortec.
 

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The lean mean donut machine
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in order to have a vortec engine you will need vortec heads and an intake specially manufactured to fit them. I believe vortec heads also require self aligning rocker arms also. All of these things should bolt onto a regular small block.
 

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http://teamrfc.gospelcom.net
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Those guys are right, and you also may need center bolt valve covers. You can get a set of assemeled vortec heads with the spring upgrade so that the heads can handle .525 lift for $ 650 a set, with the self aligning rockers. Those things, and a vortec intake manifold and thats all.

Adam
 
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