LSX Magazine

LSX Magazine LSX Magazine is the #1 magazine focusing on late-model GM, LSX, and LTX performance. From LS1 to Gen V, we cover it all.

LSX Magazine is the Internet’s leading LS-powered muscle car enthusiast online publication. This all-digital magazine is aimed at those who love all machines motivated by General Motor’s latest creation, the LS powerplant. Fuel injected, supercharged, nitrous-fed, or sporting a turbo, if it makes power, its all good. LSX features the latest in up-to-the-minute industry news, in depth technical art

icles and installation how-to’s, and nation-wide coverage. From the revolutionary LS1 to the latest Gen V and beyond, LSX Magazine is the #1 source of up-to-the-minute coverage of GM’s formidable small-blocks.

Cylinder heads decide how efficiently an LS or LT engine uses every cubic inch it has. As AFR explains, airflow through ...
06/01/2026

Cylinder heads decide how efficiently an LS or LT engine uses every cubic inch it has. As AFR explains, airflow through the head has to be matched to displacement, RPM range, and the way the engine will actually be used. Port volume and velocity work together, and chasing a larger port can slow airspeed and cost low- and mid-range torque, while ports that are too small can limit power as RPM climbs.

Combustion chamber volume and deck thickness influence compression, fuel requirements, and head gasket stability, especially in boosted applications. AFR’s modern CNC-ported LS and LT heads show what’s possible today, with street-focused castings capable of supporting power levels that once required race-only hardware, when the head is chosen to fit the combination rather than the spec sheet.

Throwback to when the LT platform proved it could run with the best of them. When the GM LT1 replaced the LS, expectatio...
05/01/2026

Throwback to when the LT platform proved it could run with the best of them. When the GM LT1 replaced the LS, expectations were sky high, and this all-motor 440ci build from Late Model Engines showed exactly why the platform mattered.

Using a factory LT4 block and heads, LME pushed compression to 14:1 and rpm to 8,500, resulting in 822 horsepower without boost, spray, or shortcuts. Installed in Brandon and Tiana Weber’s Snow White Camaro, the combo backed it up with 6.39s in the eighth and 10.24s in the quarter, all at full weight.

Proof that smart engineering and careful parts selection can rewrite what factory-based LT engines are capable of.

The Geo Metro was never meant to be fast. Built as a joint effort between General Motors and Suzuki, it was cheap, effic...
05/01/2026

The Geo Metro was never meant to be fast. Built as a joint effort between General Motors and Suzuki, it was cheap, efficient, and forgettable by design. That’s exactly why Ben Schmidt couldn’t leave it alone.

What started as a $200 economy car pulled from marsh grass turned into something far more unhinged. After scrapping plans for a superbike drivetrain, Schmidt committed to a transverse LS4 and 4T80E combo, backed by a Cadillac cradle and custom chassis work to make it all fit. The result is a 93-inch-wheelbase Metro packing 290 horsepower and 310 lb-ft of torque, widebody and all.

It’s not built for quarter-mile glory or top-speed heroics. It’s built because it shouldn’t exist, and because builds like this are what keep grassroots performance fun. If you’re ever around Nekoosa, Wisconsin, keep your head on a swivel. This Metro doesn’t blend in anymore.

This is still one of our favorite builds we’ve seen over the years. This Pontiac Firehawk T/A, purchased new in 1993 and...
04/01/2026

This is still one of our favorite builds we’ve seen over the years. This Pontiac Firehawk T/A, purchased new in 1993 and immediately sent to Street Legal Performance for Firehawk conversion #195 of just 201, has spent the last three decades doing exactly what it was meant to do: getting driven, pushed, and refined.

Owned by Ilario C. since day one, the car has evolved far beyond its original SLP roots. The latest chapter came through Vengeance Racing, with a 468ci naturally aspirated LSR, sequential gearbox, and independent rear suspension turning this fourth-gen into a serious road course machine while keeping its sleeper Firehawk presence intact. After 30 years of track days, travel, and memories, the question still stands: would you still call this a Firehawk?

Despite the C8 being around for a while now, it’s still difficult to imagine seeing one on nitrous for some reason. Mayb...
04/01/2026

Despite the C8 being around for a while now, it’s still difficult to imagine seeing one on nitrous for some reason. Maybe it’s the mid-engine layout, or maybe it’s how refined the car feels from the factory. Either way, setups like this from Nitrous Outlet show how modern control and built-in safeties have changed the nitrous conversation entirely.

This 1971 Chevrolet K5 Blazer blends classic SUV styling with a thoroughly modern foundation. Built by Premier Street Ro...
03/01/2026

This 1971 Chevrolet K5 Blazer blends classic SUV styling with a thoroughly modern foundation. Built by Premier Street Rod on a Roadster Shop Legend Series chassis, it replaces every weak point of the original truck with contemporary engineering. GM-based independent front suspension, Fox adjustable coilovers, Silverado disc brakes, and rack-and-pinion steering give it smooth road manners and real control, whether cruising pavement or heading toward the water.

Out back, Deaver leaf springs, Fox shocks, and a GM 12-bolt with 3.42 gears balance load capacity with stability. Power comes from a supercharged LT4 rated at 650 horsepower, paired with an 8L90 automatic and finished with a Vibrant Performance exhaust. Inside, the Velocity leather interior, Dakota Digital gauges, Vintage Air, and modern wiring bring comfort and reliability without stripping away the Blazer’s classic character.

A Top 10 finisher in the Off-Road class at SEMA Battle of the Builders and featured in Classic Truck Performance, this K5 shows how far a vintage SUV can be pushed when the chassis comes first.

We saw it on the Barrett-Jackson lineup and thought it was cool enough to share.

People always say young drivers can’t handle the horsepower in modern cars, but getting lost and stuck on train tracks p...
03/01/2026

People always say young drivers can’t handle the horsepower in modern cars, but getting lost and stuck on train tracks proves it’s not always a power issue.

Yes, this really happened.

Fast street cars have been around for decades, but few actually back it up under scrutiny. Glen Sheeley’s ’62 Corvette d...
02/01/2026

Fast street cars have been around for decades, but few actually back it up under scrutiny. Glen Sheeley’s ’62 Corvette does exactly that.

With an all-motor LME 429 LS, this stock-bodied Corvette has laid down an 8.33 at over 159 mph while remaining street-driven, pump-gas capable, and fully Drag Week legal. It runs dual fuel systems, cruises comfortably with overdrive, and still carries much of its original Corvette identity inside and out.

Recognized as the quickest naturally aspirated small-block street car in the country, it has also earned Drag Week wins, record average ETs, and a “Fastest Without A Trailer” title the hard way, under rules, inspection, and real road miles.

Building a 1993–2002 F-body for track use often comes down to space and weight. The factory front structure eats up room...
02/01/2026

Building a 1993–2002 F-body for track use often comes down to space and weight. The factory front structure eats up room under the hood and adds mass right where you don’t want it, especially when you start planning turbo systems or serious engine hardware. That’s where the tubular front end kits from Team Z Motorsports come in.

Designed from 4130 chromoly, these front ends replace unnecessary factory material with a stronger, lighter tubular structure that opens up the engine bay and improves access. According to Dave Zimmerman, the design builds on years of Fox Body development, adds weld-in strength at the strut towers, and simplifies motor plate and mid-plate installation. Available in fully welded or kit form, each setup removes about 25 pounds from the nose and includes the hardware needed to bolt it all together.

One of the most common mistakes in LS builds is choosing a camshaft based on specs alone.Duration at .050, peak lift, an...
01/01/2026

One of the most common mistakes in LS builds is choosing a camshaft based on specs alone.

Duration at .050, peak lift, and lobe separation don’t account for how fast the valves are opened, how stable the valvetrain is at RPM, or how long the engine is asked to live there. A short-duration, aggressive-ramp cam can be harder on parts than a larger cam with gentler motion, especially in engines that see sustained load or long track sessions.

Professional cam development starts with use case first: street driving, drag racing, circle track, boost, displacement, gearing, and even class rules. That’s why companies that actually design cams, including engineers at Melling, rely on tools like Spintron testing and dyno validation instead of spec-sheet assumptions.

LS engines reward thoughtful cam selection. Guessing usually costs power, parts, or both.

Ryan Pederson didn’t come from a racing family, and that shaped everything about this build. He started with a clean, lo...
01/01/2026

Ryan Pederson didn’t come from a racing family, and that shaped everything about this build. He started with a clean, low-mile 2007 Corvette Z06 and transformed it step by step into a 3,000-horsepower Outlaw Stick Shift car. Powered by a billet 427 LS and turbocharged, shifted through an H-pattern T56 at 9,000 rpm, the car has already gone 6.92 at 217 mph.

We have big hopes for you all going into 2026. We expect to see those projects stay off the jackstands and stay on the r...
31/12/2025

We have big hopes for you all going into 2026. We expect to see those projects stay off the jackstands and stay on the road!

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LSX Magazine is the Internet’s leading LS-powered muscle car enthusiast online publication. This all-digital magazine is aimed at those who love all machines motivated by General Motor’s latest creation, the LS powerplant. Fuel injected, supercharged, nitrous-fed, or sporting a turbo, if it makes power, its all good. LSX features the latest in up-to-the-minute industry news, in depth technical articles and installation how-to’s, and nation-wide coverage.

From the revolutionary LS1 to the latest Gen V and beyond, LSX Magazine is the #1 source of up-to-the-minute coverage of GM’s formidable small-blocks.