To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Over the years, General Motors has employed several eight-cylinder engine designs ranging from the inline "Straight-8" to the current LT1 V8. However, many agree that the small-block LS engines were ...

Anytime such an undertaking is carried out, there will be some who will claim that they can make even more for less, and that may be. As we point out in our price list, there are a few areas where the ...

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, ...

Chevy's Vortec 8100 — AKA the L18, AKA the Vortec 8.1 — was the last of The General's big block V8s, a line of engines that traced its lineage clear back to the fire-breathing muscle cars of the '60s ...

We've been getting a ton of mail with questions about how and when to modify the Vortec small-block iron heads—so much mail that we decided to condense all the Vortec information into one concise ...

Ever since the small-block Chevy was introduced 50 years ago, engineers, racers, and backyard hot rodders have delved into its cylinder heads in the quest for more power. Chevrolet did an admirable ...

For those readers out there who may be scratching their heads, the big red Swedish meatball you see before you is a 1974 Volvo C303, hailing from the automaker’s line of military vehicles. This ...

Although Vortec engines fall under the "LS" branding, they aren't actually the exact same as more traditional LS engines made ...