One bolt-on makes any boneyard 5.3 eat LS7s for breakfast.
Vortech Engineering has done it again. Now owners of 1999-2013 Gen III and Gen IV Vortec V8 engines (as pulled out of Chevy, GMC, and Hummer light trucks and SUVs) can install a belt driven V3 SCi supercharger without any intake or front dress hassles. Just call Vortech Engineering (or your local Vortech rep) and say: “I want a Vortech for my Vortec.” It didn’t used to be so easy.
The history of hassles stems from the fact GM used different intake manifolds and front dress on the light truck / SUV based Vortec engines than it did on non-Vortec passenger car applications like 1997-up Corvette, Camaro, Firebird, GTO, etc. But with Vortech Engineering’s GM Vortec-specific kit (PN 4GX218-154L), that’s all a memory. Now, the taller Vortec barrel-ram intake manifold and throttle body stay put, and the front drive setup remains nearly intact.
What this means is owners of 1999 – 2013 Gen III and Gen IV powered trucks can give their work trucks, trailer haulers, family movers, and fun machines an 8-psi injection of life (the 4.8-liter Vortec 4800, 5.3-liter Vortec 5300 and 6.0-liter Vortec 6000 are all serviced by this kit). It sure beats starting another fat payment coupon book!
Or, for Car Crafters with a sense of adventure, as rust and wear begin to force Vortec-powered work horses into retirement, their 4.8-, 5.3-, and 6.0-liter engines become ripe for harvesting—and swapping into lighter platforms. The stock Vortec front dress is proven to fit 1978-up G-bodies, C10 pickups, Tri-Five Chevys, and most vintage (pre-1975) muscle cars.
In this story, let’s watch as the guys at Spencer, Massachusetts’ NextGen Performance—an authorized Vortech dealer and installer—demonstrates how crazy simple it is to mount a Vortech V3 SCi to a lightly modified (LS9 cam and LS6 springs) Vortec 5.3. Once installed and after tuning, this little devil made 478 horsepower and 464 lb-ft for well under $4,000—of which less than $500 paid for the junkyard 5.3 core engine.
Think about it. You could pop together a Vortech supercharged 5.3 (or a 4.8 even!) then embarrass ZO6 crate engine buyers for a third the investment. It’s all possible when you put a Vortech on your Vortec!
PIN THAT PULLEY!
All Gen III crank pulleys are press-fit onto the crankshaft snout before being trapped by the center bolt. To guard against slippage with the additional load of the Vortech supercharger, NextGen Performance strongly suggests pinning the pulley to the crankshaft. Here’s how…