but the techniques employed to design new parts are cutting-edge. The latest chunk of aluminum from Edelbrock has been dubbed E-CNC and it replaces the RPM XT cylinder head. One quick look at the ...

You might think that after all these years the pushrod V-8 has been in existence, cylinder head design would have been perfected. Think again. When it comes to cutting ports and combustion ...

As with all Ron Robart's cylinder heads, his CNC port job originates from his own hand-cut design. After months of experimentation with the '99-and-newer P.I. castings (see Head Name Games sidebar ...

For this episode ofEngine Masters, presented by AMSOIL, we grabbed a set of as-cast Chevy Vortec heads, 906 castings in this example. The stock 170cc ports were left untouched, along with the 64cc ...