Making More Power with 4.3 Vortec Aluminum Heads
If you're looking to get some serious grunt out of a Chevy V6, swapping over to 4.3 vortec aluminum heads is probably the single best move you can make. The 4.3L has always been a bit of an unsung hero in the engine world. It's essentially three-quarters of a 350 small block, which means it has a ton of potential that often goes untapped because people just see it as a "work truck" motor. But once you start looking at the airflow and the weight savings you get from aluminum, things start getting interesting. ...