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While the Vortec head does bolt on to any small-block Chevy (except the LT1/LT4/LS1), it has a different intake manifold bolt pattern that uses only four intake bolts per side, for a total of eight. Also, the bolt holes are drilled at a steeper angle. While it is possible to either modify an existing intake manifold or drill and tap the head to accept a standard small-block intake, the easiest route is to go with a dedicated Vortec intake from Edelbrock. View Related Article
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