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: Advice on Swapping a 4.8L LR4 LS Engine & 4L60E Trans into a 1969 Firebird
I have a 1969 Firebird that I’m swapping in a 2002 LR4 4.8L LS engine from a GMC Sierra pickup. I have the mechanical swap parts for mounting the engine […]
4.8L LS Engine Guide: Block Specs, Swap Resources & Build Info
For well over two decades, GM put LS engines in everything from sports cars to cargo vans. That means the factory produced the LS in a range of displacements, starting […]
Tire-Turning Torque: Low-Buck LS Blower Test!
What’s the biggest complaint about the little 4.8L LR4 LS Engine? Well, it’s the same complaint lodged about any small V8—namely the lack of torque production. Don’t get us wrong, […]
LR4 4.8L Engine Upgrade Guide: Expert Advice for LR4 Engine Mods to Maximize Performance
[Editor’s Note: This LR4 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. […]
LR4 4.8L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More
The LR4 is a 4.8L iron block truck engine that was introduced in 1999. Along with the LM7 and LQ4, they were the first LS truck engines. The LR4 was available […]