my intake manifold won't work!'" Customers re-drilled the Vortec heads for the conventional small-block Chevy intake bolt pattern and ran into trouble when they tried to bolt on their factory GM ...

The intake manifold on Vortec heads are held ... Bow Tie Heads* If you're looking to update an early small-block Chevrolet with Vortec heads, here are some part numbers that will help: * 12464298 ...

We collected a 23-deep pile of dual plane intakes to continue with our small block Chevy dual plane intake comparison. The collection of manifolds ... bypassed both the Vortec intake and the ...

The intake face of a Vortec head is cut at a slightly different angle than the First-Generation SBC heads and features an eight-bolt-hole intake manifold hold down as opposed to the standard 12 ...