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Old September 4th, 2007, 09:21 PM   #20
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Originally Posted by Flexin' XJ View Post
vortec heads were not available until 1996, when the vortec engine was introduced.

Somebody may have PUT vortec heads on it, but the intake manifold would have needed to be changed to fit the head bolt pattern. Unless it is different for the 350s and 454s.
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