The 6.0L Vortec is GM’s workhorse V8 — the engine they put in the trucks and vans that needed to pull more than a 5.3 could handle. It powered the Silverado 2500, Sierra 2500, Express and Savana vans, Trailblazer SS, and a handful of SUVs across multiple generations. It’s a bigger, tougher version of the …
If you own a 2007 or newer GM truck or SUV with a 5.3L, 6.0L, or 6.2L V8, there’s a ticking time bomb inside your engine called Active Fuel Management — and there’s a good chance it’s the reason you’re reading this right now. AFM (also called DOD — Displacement on Demand) is GM’s cylinder …
AFM Lifter Failure & DOD Delete: What Every GM Truck Owner Needs to Know Read More »
RockAuto is one of the biggest online auto parts retailers for a reason — massive catalog, competitive prices, and a no-frills shopping experience that gets parts to your door. But it’s not perfect for everyone. Limited phone support, multi-box shipping that adds up, and a “figure it out yourself” approach to fitment means a lot …
RockAuto Alternatives: Where Else to Buy Auto Parts Online Read More »
Marine engines live a harder life than anything on the road. Constant RPM under load, salt air or lake humidity, months of storage followed by hard startups — it all adds up. When your inboard finally gives out, you need a marine long block that’s built to survive that environment, not a truck engine with …
Marine Long Block Engines: The Complete Buyer’s Guide Read More »
Cylinder heads are where the magic happens in an engine. Air and fuel come in, combustion happens, exhaust goes out. When the heads are worn, cracked, or just not flowing enough for what you’re trying to do, the whole engine suffers — low power, overheating, misfires, coolant loss, or all of the above. Remanufactured cylinder …
Remanufactured Cylinder Heads: What You Get, What It Costs, and When to Buy Them Read More »
LS & SBC Bare Blocks: What to Know Before You Buy A bare block is the foundation of every engine build. It’s the casting — the cylinder bores, main saddles, and deck surfaces — with nothing bolted to it. No crank, no pistons, no heads. Just iron or aluminum waiting for you to build something …
LS & SBC Bare Blocks: What to Know Before You Buy Read More »
The 5.3 Vortec is the most replaced GM engine on the road. It powers everything from Silverados and Sierras to Tahoes, Suburbans, and Yukons — and GM has put millions of them in trucks since 1999. If yours just gave up, you’re far from alone, and the good news is that replacements are plentiful and …
Remanufactured 5.3 Vortec Engine: What to Know Before You Buy Read More »
The tail lights of your 2025 Chevy Silverado 3500 HD play a crucial role in ensuring your safety on the road, signaling your intentions to other drivers, and complying with legal requirements. Unfortunately, like any other component of your vehicle, they can malfunction or burn out over time, leading to potential safety hazards and costly …
DIY: Save Money by Fixing the 2025 Chevy Silverado 3500 HD Tail Light Yourself Read More »
If you hear a metallic rattling or clanking from the back of the engine — especially at startup or idle — and it’s not a rod knock or a lifter tick, there’s a good chance your flexplate is cracked. It’s one of those parts nobody thinks about until it breaks, and when it does, the …
Flexplate vs. Flywheel: What’s the Difference and When to Replace Read More »
Whether you’re replacing a failed stock converter or upgrading to a higher-stall unit for towing or performance, picking the right torque converter matters more than most people realize. The wrong one makes your truck feel sluggish off the line or overheats the transmission at highway speed. The right one matches your engine’s power band to …
