First Gen-V 5.3L L83 V8 Dynos: Lingenfelter Tests A 2014 Chevrolet Silverado With Impressive Results

Hot off the presses from our friends at GM High-Tech Performance Magazine: Lingenfelter dynos and track tests one of the first Gen-V 5.3L L83 V8 engines with seriously stout results. On the dyno, using 93-octane fuel with 9% ethanol it put down 307hp at 5200rpm and 332 lb-ft of torque at 4200rpm on LPE’s Dynojet 248 through the factory 6L80E transmission. But with a blend of pump and E85, those numbers jumped to 321hp and 355 lb-ft of torque! Now that’s impressive!
With the pump gas in the tank, the 5,340-pound truck sprinted to 60 in 7.5 seconds on a way to a quarter mile of 15.94 at 90.7mph. With the blended E85, which the ECU apparently measured out to 65% ethanol, moved those numbers down to 6.96-seconds for the 0-60 mark and the 1/4-mile time fell to 15.51 at 93.5mph. Seriously, if a stock 5.3 is putting down these kinda numbers, we can only imagine what the LT1 will throw down in the C7. Here’s to the good times ahead!
For more info checkout the GM High-Tech Performance Link.