I`m pretty sure they will fit. The Corvette one`s are the on`s that flow good, 2.5 in outlets. I think the one`s you have pictured are the 67-72 truck manifolds that have small outlets and don`t flow as well. I have been looking into the L98 Corvette manifolds, as I have a set. Stainless steel 2.5 inch outlet rams horns.