Brothers Josh and Eric Buzzell of NextGen Performance have found a way to bring low-buck, supercharged performance to junkyard-sourced 5.3-, 5.7-, and 6.0L LS2 and LS3 truck engines, which they then swap into cars of every description. It all started with the 2014 GM factory service bulletin affecting more than 10,000 2009–2013 CTS-V Cadillacs and 9,900-plus 2012–2013 ZL1 Camaros. It seems their Eaton-sourced superchargers started making odd noises at idle after a few seasons of use. Owners of these potent 6.2L, 556hp (580 in Camaro), LSA-equipped factory hot rods complained of “loose marble” rattling sounds at engine speeds below 1,200 rpm. Function and performance were not affected, but GM had to react under the increasing public scrutiny. After all, these cars weren’t cheap to buy, and rattling sounds at idle were unwelcomed by owners of these sinister brawlers.
The result was a nationwide warranty-repair campaign (as described in GM Service Bulletin No. 13313) launched in May 2014. Because GM didn’t want to risk having service technicians disassemble the faulty blowers and affect spot repairs, they simply yanked the entire supercharger unit and replaced it with a fresh (and upgraded) assembly. As for the take-off units, some got smashed by sledgehammers and others wound up on eBay.
With more than 20,000 LSA engines affected by the repair campaign, a large chunk of loud-but-functional, take-off superchargers suddenly showed up online for less than a grand. This is where the Buzzell brothers and NextGen Performance entered the picture. They figured, why not find a way to adapt these surplus blowers for use on dime-a-dozen pickup truck and SUV LS2 and LS3 junkyard engines? Thanks to the heavy use of corrosive road salt in the Northeast, their local boneyards were crawling with Gen III V8-powered Chevy and GMC pickups and SUVs. Though their rusted frames and bodies forced scrapping, their potent LS engines were still going strong.
Seeing an opportunity, NextGen engineered a nifty little “1 + 1 = 3” kit that combines orphaned LSA blowers and serviceable boneyard 5.3, 5.7, and 6.2 V8s. Here’s a look at how NextGen conjured a way to adopt the cast-off LSA blowers to these used Gen III V8s. Everything shown here is available in a handy kit from NextGen. Get started today!