… Adding an L76 Supercharger or Nitrous Oxide System Here are a few parts commonly used for an L76 cam swap: LS2 timing chain, LS7 spec lifters, LS2 timing chain damper, and thick-wall chromoly pushrods. Tech Tip: When you’re pulling the cam, switch out the spring-loaded timing chain tensioner for the more reliable wedge-style (early) LS2 damper. You will want to install a trunnion kit for added reliability. The stock rockers are good up to 175 lbs. Titanium retainers are another upgrade that will reduce valve float. Spring kits are available for typical 0.600 in. Heads and intake good for another 40+ hp. Still can drive daily.įly-cutting the pistons may be required. Turbo cams reduce overlap with less exhaust duration split in relation to the intake.Ĭonverter recommended. Generally, supercharger cams and nitrous cams will have slightly more lobe separation and longer exhaust duration. There are specific cams in the 230-234 range with intake valve events specially designed to clear the piston without flycutting. Piston to valve clearance with a L76 is tight. What are the limitations to going bigger? If you’re still driving daily, cams in the 215-220 degree intake-duration range can be tuned to idle nearly stock and still provide good mileage.Ĭams in the 220- 226 range are a little more serious, but are still easy to tune, and driveability is still good. If a lifter is already failing, it’s best to go with an AFM delete kit.Īnd if you’re in this deep, why not put a cam in it?!įor more on that, read: How to Delete or Disable Active Fuel Management (AFM) on GM Engines. If your engine is in good running condition now, you can install an AFM disabler. … Upgrading the L76 Car Engine’s Camshaft and ValvetrainĪs we mentioned earlier, the engine came with AFM-which is known to fail. Before going to the tuner, we recommend installing a colder thermostat to open up the tuning window.īelow are other upgrades you can make to improve the performance of an L76 engine. Getting a tune makes it easier to dial in a bigger cam and injectors later.
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