Top 5 Best Aluminum Heads for Small Block Chevy [December 2025 Review] - MetalProfy

Porting another set of 7.3L Godzilla heads today, and it’s a perfect reminder that runner volume by itself doesn’t tell the whole story when choosing or evaluating cylinder heads. At first glance, the Godzilla intake ports look huge — especially compared to something like a small-block Ford or even many big-block Chevy heads. But that comparison ignores a critical factor: runner length. The distance from the intake-manifold face to the valve isn’t the same across engines. The induction system ha

Chevy 461 Double Hump Cylinder Head Comparison - Tech Talk