Latest Dyno Run - Custom Built LS427 with Whipple 2.9L Supercharger
Custom built LS427 with Whipple 2.9L Supercharger. This engine was built with racing in mind. In fact, it is one of three built for a drift racing team across the pond in Poland. Some of the standout features include RHS Aluminum Block, LSX 6-bolt Aluminum CNC Heads, Comp Cams Billet Valve Covers with Spring Oil Squirters, Callies Rotating Assembly, Piston Oil Squirters, Dry Sump Oil Pan System by ARE with Spintric Air/Oil Separator, and Billet Serpentine System by Concept One with 10 & 8 rib serpentine belts.
Are you looking for a new engine for your Hot Rod? Give us a call at 678-482-0866.
Engines & Transmissions
Engine options include LS1-LS2-LS3-LS7 in GM's Automotive Line and 5.3L-6.0L-L92-L9H for GM's Truck Line. The GM Performance Line offers the 480 & 525 Horse Power LS3s plus the LSx 376 and the LSx 454. Horse power options for the factory and performance LS engines range from 300 to 665. SPS offers custom builds using aluminum block and the more serious LSx block. For the budget-minded, there are some good used take-out engine available at great prices.
View Engine Packages
Transmission options include 4L60E- 4L70E-4L80E-4L85E and the new 6L80E & 6L90E 6-speed automatic transmissions. Manual transmissions such as the T56 Magnum and TKO600 are also available. SPS provides transmission that use a standard slip yoke, where as the production units use a fixed yoke that requires a 2- piece driveshaft. The 6-speed automatic can be used with a paddle shifter for those who want to shift the transmission without the use of a clutch. For high-horsepower engines, custom transmissions can be built to handle to extreme power and torque. Our stock torque converters work great with most engines and we have high-stall converters for our big cam engines. When setup correctly, these high-stall converters provide great gas mileage and work just fine on the highways. SPS will pair your engine and transmission with the converter that will work best for you.
Engine Control Modules & Harness Kits
All engine management harnesses are custom made to fit each engine/transmission package. Along with the harnesses that we offer, SPS also offers GM Factory ECMs (Engine Control Modules) and TCMs (Transmission Control Module) and custom programming. Each harness comes with Check Engine Light and Factory Diagnostic Plug which can be scanned by any shop with the right equipment. We also offer Holley ECM Controllers and harnesses for automatic or manual transmissions as well as FAST Electronics and Comp-U-Shift transmission controllers. Along with the LS engines harness, SPS now offers Harnesses and ECM Programming for the LT1 line.
Featured Engine from our Engine Gallery
ProSea: LSX427 with Magnuson TVS2650 & 10-Rob Billet Serpentine System
Check out Blaine's airboat powered by our LSX427 with Magnuson TVS2650 Supercharger and billet aluminum 10-rib serpentine system design for marine/airboat use. 1000+ Horsepower.
View GalleryFeatured RestoMods Projects at Southern Performance Systems
1962 Oldsmobile Starfire
This is a rare 1962 Oldsmobile Starfire with a ProStreet LS376/480 Engine with 4L70E Automatic Transmission installed by Southern Performance Systems. A lot was done to this car. Obviously the engine and transmission were upgraded but we also beefed up the rear end, updated the fuel delivery system for EFI with a custom built fuel tank, upgraded the brakes to Wilwood brakes, and improved the steering with new Flaming River column and hydroboost system. Improved the suspension with RideTech control arms and AFCO coil-over shocks. The interior was renewed by our friends at Fountain’s Upholster. This car rides and drives like a modern car with that classic look. Updates to the interior include Vintage Air AC system, Dakota Digital gauges, American Autowire body harness, and a Custom Sounds radio with that classic look.View Gallery
1962 Oldsmobile Starfire
This is a 1966 Chevrolet Corvette with a Street Rod Series LS376/480 Engine with TKX600 5-Speed Transmission installed by Southern Performance Systems. A lot was done to this car. The engine and transmission were upgraded to match modern Corvette performacne and power. We also beefed up the rear end, updated the fuel delivery system for EFI, installed a complete RideTech suspension in both the front and rear of the car, and improved the steering with new Flaming River column and power steering box. This car rides and drives like a modern C6 Corvette with that classic look. Updates to the interior include Vintage Air AC system, Dakota Digital gauges, and American Autowire body harness.View Gallery
Customer's airboat with our LS3 Stage IV 560HP engine. Dmitry happens to live in Ukraine and has not been able to take his airboat out on the water since finishing it due to the war. We look forward to hearing from him again once everything settle down in his country. God Bless.
Featured Hot Rod - David G's 1966 Corvette Convertible
This is a 1966 Chevrolet Corvette with a Street Rod Series LS376/480 Engine with TKX600 5-Speed Transmission installed by Southern Performance Systems. A lot was done to this car. The engine and transmission were upgraded to match modern Corvette performacne and power. We also beefed up the rear end, updated the fuel delivery system for EFI, installed a complete RideTech suspension in both the front and rear of the car, and improved the steering with new Flaming River column and power steering box. This car rides and drives like a modern C6 Corvette with that classic look. Updates to the interior include Vintage Air AC system, Dakota Digital gauges, and American Autowire body harness.
Are you looking for a new engine for your Hot Rod? Give us a call at 678-482-0866.