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 ...

For many GMHTP readers, the object of desire is none other than a high-power LS V-8 to shove under the hood of his or her GM muscle machine. But until now, many budgets have only allowed the likes of ...

Fully assembled and sitting on the engine dyno, our new 383 stroker LS motor looks downright mean. Then again, looking cool is pointless if you’re not making serious horsepower, so follow along to see ...

Throwing speed parts at stock engines is about as pure as hot rodding gets. From stacking carburetors on utilitarian flat-head Ford engines to bolting a big blower on a world-weary small-block, the ...

Over 8,500 hours were spent on rebuilding this 1972 Chevrolet K5 Blazer into the BULLY with all uppercase letters. Revealed at SEMA 2022, the no-nonsense rig makes 1,200 horsepower from a very special ...