Procomp Head Test - Budget Brute

One of the problems with running the proverbial ultimate cylinder head test that we did a few years back (a.k.a. MM&FF's Ultimate Guide to Cylinder Heads), is that the performance world continues to evolve. By that we mean that despite our very best effort to include every single cylinder head in our shootout, new 5.0L heads continue to hit the market.

Having been in the Mustang business for more years than I care to admit, I certainly remember when our only cylinder head option was a ported 351W casting. Times sure have changed, as now 5.0L enthusiasts have about a zillion different castings and configurations to chose from.

Are CNC ported heads really worth the extra cost? The only way to find out is to stick a test motor on the dyno and run a back-to-back test.