If you've been reading GMHTP lately, you know that the new L92 heads are superior to stock LS1 and LS2 heads. But what happens when you put them to task against one of the best 15-degree heads on the ...

Last month HOT ROD, in conjunction with Duttweiler Engineering, began evaluating the performance potential of the widely available 6.0L LS-series truck engine. We were able to raise output from the ...

There it was, an honest-to-goodness, aluminum L92 engine. Don't get us wrong, we love every single junkyard 5.3L LM7, but they are usually ratty, greasy, and full of rodent droppings. Yes, you heard ...

With the sheer number of years it has under its sleeve, General Motors is one of the largest and most revered vehicle manufacturers in today's market. The company was established in 1908, and you ...