GM has turned out a ton of variations of their venerable LS series of engines, and one block that's easy to find and fairly cheap to buy is the 6.0L iron version. These blocks are perfect for boring ...

Earlier this year we bolted a cam and headers on a 5.3L Gen III called Little Bro and made 458 hp at a screaming 6,600 rpm. That engine revealed the potential of a lesser-known family of iron-block GM ...