When Bigger is Better: 4.8L vs. 5.3L M90 Blower Test
What is the best way to make more power with a supercharger? The most obvious answer is to simply to add more boost, right? I mean if seven psi is […]
The Big Nasty! Summit Racing 5/4 LS Cam Test
Update: We found some good audio clips of this cam’s idle quality/note. We’ll post those videos at the end of the story. We also had a reader ask about torque […]
The LS Triumvirate: 5.3L Trick Flow GenX 220 Cylinder Head Test
Quick, name the three most effective components for improving power (not including power adders)? What did you come up with? Who said displacement? How about carburetion, compression or even headers? […]
The Light is Right! 4.8L LS Accessory & Flywheel Test
Is there any extra power to be had from removing the accessories or swapping out a heavy flywheel? The data we have from this series of tests is actually broken […]
Ask Away! with Jeff Smith: Choosing the Best LS Motor Oil for a 427 LS7 Engine
I have an LS7 427ci LS engine that came out of a wrecked, low mileage 2008 Corvette that is now in my ’69 Camaro Pro Touring car. We will soon […]
Parts Bin: Summit Racing Has an LS Oil Galley Barbell Plug That’s Better Than Your Original One
If you’re rebuilding a GM LS engine, then pay special attention to what is commonly called the “dogbone” or “barbell” in the main oiling system passage into the oil filter. […]
The High 5! Building a 500 Horsepower All-Motor 5.3L LS
We all know that making big power with an LS is as easy as adding boost, right? In fact, the recipe for huge power is to add cam, springs, and […]
Parts Bin: Summit Racing Ignition Coil Wiring Harness Make Connecting Your LS Coils to the Main Wiring Harness Easy & Hassle-Free
A lot of LS swaps get stymied in an unexpected place: the final precious feet of ignition wiring. That’s because a stock GM LS wiring harness typically uses a pair […]
See a Motorcycle Guy Build a Turbo LS-Powered 1970 Chevy Chevelle
Matthew Bochnak runs the How-To Motorcycle Repair channel on YouTube. If something is ailing your street or motocross bike, chances are Matt has a video that will help you diagnose and fix […]
Project 1,000: Follow Along as Summit Racing Builds a 1,000 Horsepower, Twin-Turbo 6.0L LS Engine
OK, so 20 years ago, if you told someone you could hit 1,000 horsepower without a top-tier racing R&D team in your back pocket, you’d probably get laughed at. Nowadays […]