Tick Performance proudly offers our Elite Series of Camshafts designed specifically for 4.8L & 5.3L Engines! Using the latest and greatest technology available, we've put together a complete line of Camshafts that are designed to meet every goal, from mild to wild. Our Elite Series of Camshafts are all manufactured by Cam Motion and are updated with a new version every time an advancement in valvetrain technology becomes available, so they're ALWAYS cutting-edge! Although we suggest measuring for piston-to-valve clearance during ANY camshaft install, every Elite Series Camshaft is designed to fit in a stock engine & stock heads with adequate clearance unless otherwise noted. These cams are designed to maximize power, reliability and valvetrain longevity. Tick Performance NITROU$ Camshaft for 4.8L & 5.3L Engines240/246 | .630”/.615” | LSA113+2 Designed for: All 4.8 & 5.3 Engines including LR4, LM7, L59, LM4, & L33 with Cathedral Port HeadsBasic Operating RPM Range: 3000-7200Expected Horsepower Gains: 55-70RWHP over the stock camshaft in a well-optimized setupExpected Torque Gains: 40-50RWTQ over the stock camshaft in a well-optimized setupAftermarket Headers Required: Yes, Longtube StyleStall Converter Required: Yes, 4000+RPMRear Gear Upgrade Required: NoWorks Well with Nitrous: Yes, VERY wellWill Pass Most Smog Emissions: No Here at Tick Performance, we LOVE nitrous - so much so that most of the camshafts in our Elite Series were designed to work well with smaller shots of spray. This camshaft, the Tick Performance NITROU$ Camshaft for 4.8L & 5.3L Engines, was designed for guys running MAJOR shots (up to 350HP worth, to be exact.) We strongly suggest the use of our Tick/PAC Dual Valvesprings and hardened pushrods with this camshaft (sold separately.) Countless hours were spent developing this camshaft to perform precisely the way we advertise, so as a result, changes to the LSA or any other specification of this camshaft are not available.