Description

While clean, low-mileage LSAs and LS3s have become harder to find, we’ve channeled that demand into creating the LS.R—a no-compromise, fully-built powerhouse designed from the ground up for maximum performance.

Starting with a robust Gen IV 6.0L block, the LS.R is bored and stroked to a massive 400 cubic inches. It’s built with an uncompromising list of premium components, including an 8-bolt crank, Carrillo Bullet Rods, custom Wiseco pistons, and fully ported rectangle port heads.

And the best part? You choose your boost. The LS.R will be available as a complete package topped with either a Harrop 2650 Supercharger or a Twin Turbosmart Turbo setup, both including a complete front drive system.

Like our renowned LT.R and LTX series, every LS.R is a complete, turn-key engine assembled top to bottom in-house. This is just the first glimpse—stay tuned for more photos of both the supercharged and twin-turbo variants as they come to life!