GM's 4.3-liter Vortec 4300 V6 was derived from the 350 small-block V8, sharing bore, stroke, and parts to cut costs and ...

Every pickup truckbrand has its claims to fame, but when it comes to their engines, only a few ever reach legendary status. These are the ones that quietly outlast trends, hauling and towing their way ...

Back in 1955, General Motors gave birth to one of America's most iconic engines, the Chevy small-block V8. Among these, the LS series, also known as the third and fourth generations of small block V8, ...

General Motors introduced the 5.3-liter Vortec V8 back in 1999 and kept it in production for 15 years. Over that time, it became one of the most popular small-block engines in GM's lineup, offering ...

There's a reason why gearheads put both LS (not to be confused with LT) and Vortec engines under the same umbrella of "LS", despite GM originally assigning them different badges. (And in case you're ...

Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up their budget Chevy 305 small-block (SBC), or the larger and more popular ...

In the late 1990s, General Motors faced a massive engineering crisis. The legendary, iron-block 4.3-liter Vortec V6 –- essentially a small-block Chevy sans two cylinders -– was a bulletproof workhorse ...

Modifications for your 5.3L Vortec V8 engine are a lot like eating potato chips ... you can't stop at just one. It starts innocently enough with a cold air intake, because hey, who doesn't want better ...