Southern Performance Systems

07/17/2026

🔥Patriot Missile Ready for Launch! 🇺🇸

Meet the SPSeries LS376/560 Patriot Missile from Southern Performance Systems — a show-stopping, naturally aspirated 560-horsepower LS engine with serious attitude.

This beauty is custom painted in bold red and blue with polished components that give it a brilliant “white glow.” It’s equipped with Concept One Pulley Systems Victory Series serpentine pulley system for that clean, professional look under the hood.

How we make the 560 hp happen:

-Custom-ground camshaft from COMP Cams
-Upgraded dual valve springs
-Precise custom dyno tuning

The result? Strong, reliable power that’s perfect for hot rods, resto-mods, and classic muscle cars. Built for drivers who want modern performance in yesterday’s rides.

For additional photos and to visit our website:
https://www.southernperformancesystems.com/main-gallery-hub/custom-engine-gallery/naturally-aspirated/spseries-ls376-560-patriot-missle.html

Would you drop this into your classic? Let us know in the comments!

This engine was built by Southern Performance Systems for one of our awesome customers. If you would like something similar or even a more basic LS package please give us a call at 678-482-0968.

07/09/2026

Just over 24 hours to secure your LS3 crate engine at our best prices this year Give us a call at 678-482-0866!

07/02/2026

🔥BIG NEWS for Chevy Builders & Enthusiasts! 🔥

We’ve got 12 Chevrolet Performance Crate Engines sitting on the floor READY TO SHIP right now!

This is our special 4th of July Sale celebrating the 250th Anniversary of the Independence of the United States of America! 🇺🇸

Whether you’re dropping serious power into a restomod, street rod, hot rod, or track weapon — we have the horsepower you need in stock today:

* LS3 430hp – The legendary, reliable powerhouse perfect for daily-driven builds
* LS376/480 495hp – Serious performance with that extra kick
* LS376/525 525hp – Pure muscle for when you want to dominate the road or strip

These are brand-new, genuine Chevrolet Performance crate engines — ready to make your project scream.�

Limited stock. Once these 12 are gone, they’re gone. Don’t wait weeks for backorders from the dealer!

Call Us Now at 678-482-0968 for July 4th pricing, availability on specific models, and shipping options. SALE ENDS JULY 10TH, 2026

Local pickup also available.

Tag a friend who needs an LS in their life!

07/01/2026

🔥 Holy boost, Batman! This LSX 454 just woke up with some SERIOUS attitude!🔥

We dropped a Whipple Superchargers GEN 6 3.0L Inverted Hot Rod supercharger on this beast and dressed it out with a razor-sharp Concept One Pulley Systems Max 10R 10-rib setup. The inverted Whipple sits nice and low for perfect hood clearance in your classic or restomod, while the dedicated 10-rib belt handles big boost without breaking a sweat. This thing delivers massive low-end torque that’ll pin you back in the seat the second you mash the throttle — street manners by day, tire-shredding monster by night. Clean billet looks, that signature twin-screw whine, and enough power to push well over 1,000 HP on the right setup. Built on a stout GM LSX454 foundation with premium components throughout.

Who else is running a big-inch LS with a Whipple? Drop your combo, peak boost, or just a 🔥 below!

👉Full build details here: https://www.southernperformancesystems.com/main-gallery-hub/custom-engine-gallery/supercharged/lsx454-whipple-inverted-30l.html

Southern Performance Systems
678-482-0866
Today's Muscle Engines for Yesterday's Cars

06/24/2026

06/23/2026

🔥700HP Misty Blue LS3 Beast 🔥

This custom-built LS3 was built by Southern Performance Systems — and it’s an absolute stunner! Finished in that gorgeous Misty Blue Metallic paint that pops under the lights with showroom-level details everywhere.

Built Specs:
* CNC-ported cylinder heads with Inconel valves (nickel-based superalloy that delivers extreme heat resistance, strength at high temps, and superior durability — ideal for high-horsepower and boosted applications)
* Powder-coated Holley cast aluminum Plenum intake
* Billet fuel rails with hand-bent stainless steel crossover tube
* Custom hand-made steam line (vents trapped air & steam from the heads to prevent hot spots and keep temps even)
* 102mm drive-by-wire throttle body
* Billet aluminum serpentine belt system from Concept One Pulley Systems
* Black finned valley cover

Estimated output: 700 horsepower

Clean, aggressive, and ready to rip. This thing is going to look as sexy as it sounds.
Would you drop this in your build? Drop a 🔥 below if you’re obsessed with dressed-up LS engines!

06/08/2026

🔥Check out this stunner from Southern Performance Systems!

The SPSeries LSX427 Red is a naturally aspirated 427ci LSx powerhouse dressed in deep, rich Velvet Red with full billet dress-up. Featuring a Callies rotating assembly, billet serpentine system, and hidden coil packs under custom billet valve covers, this engine looks as mean as it runs.Dyno-proven at 671 horsepower, this is a turn-key modern muscle engine built for classic cars, hot rods, and resto-mods.

Today's Muscle Engines for Yesterday's Cars — done right! 💪

Who else loves a clean, high-horsepower naturally aspirated LS build? Drop a 🔥 below if this is your style!

05/18/2026

Our SPSeries LSX427 with Dual Plenum Intake, finished in a deep, rich Velvet Red!

This 427 ci naturally aspirated beast features twin throttle bodies on a striking dual plenum setup, premium Callies rotating assembly, and dyno’d an impressive 625 ft-lbs of torque. Modern LSX power wrapped in classic hot rod style — perfect for your resto-mod or street rod.

Bold. Powerful. Beautiful. Exactly what we mean by “Today’s Muscle Engines for Yesterday’s Cars.

”Who else wants this under their hood? Drop a 🔥 below if this engine bay speaks to you!

More details & photos: https://www.southernperformancesystems.com/main-gallery-hub/custom-engine-gallery/naturally-aspirated/spseries-lsx427-dual-plenum-intake.html
Southern Performance Systems
Chevrolet Performance Authorized Reseller

05/11/2026

Meet the ZZ632/1000 Black built by Southern Performance Systems. This massive 632 cubic inch big-block delivers 1,025 horsepower and 888 lb-ft of torque with zero boost — just raw displacement and Chevrolet Performance DNA mixed with a bit of SPS style.

05/11/2026

Southern Performance Systems
🔥 1,025 HP of Pure Naturally Aspirated Mayhem! 🔥

Meet the ZZ632/1000 Black built by Southern Performance Systems. This massive 632 cubic inch big-block delivers 1,025 horsepower and 888 lb-ft of torque with zero boost — just raw displacement and Chevrolet Performance DNA.

Dressed in a menacing all-black finish, it’s topped with a Hogan Racing intake and features the clean Concept One Big Block Victory Series serpentine kit for a professional, show-ready look under the hood.

This isn’t just an engine — it’s a statement.

Perfect for your next Pro Touring, resto-mod, or street/strip monster.

Tag someone who needs this in their life! And visit spsengines.com today!