It’s no secret that an LS engine takes to cam swaps like a toddler to candy, but if you live in a state that follows the established CARB guidelines, you still have to ensure your engine remains emissions compliant.
That’s why the cam experts over at COMP worked directly with CARB officials on its lineup of FSL Hydraulic Roller Camshafts for the GM LS engine.
With CARB EO Number D-279-13 in their back pockets, the COMP folks made sure these cams are 50-state legal—hence the “FSL” designation. But that’s just the start of the magic here.
That’s because, depending on the cam you choose, COMP says some of the camshafts in the FSL lineup have been tested to improve output by up to 47 horsepower. And better yet, COMP offers cam swap options that are drop-in installs that work with the original valve springs and don’t require an ECU tune. Check each your specific cam to ensure compatibility with AFM or VVT. (We’ll give you a quick rundown on the specs of some of the more popular options in the FSL cam series below.)
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All told, COMP says these cams are capable of picking up significant gains from the stock trim—close to 50 horsepower in certain applications—all completely emissions-compliant. That’s a win-win in our performance playbook.
Check out some of the specific cam specs below, then click the part numbers for pricing and availability from Summit Racing.
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- CCA-146-103-11 – For the single-bolt LS3 engine family without VVT or AFM. Works with stock components and stock tune, can produce up to 32 rear-wheel hp increase in peak power
- Advertised duration 270° int./270° exh., lift 0.570″/0.541″, 118° LSA
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- CCA-54-103-11 – 1997–2015 Chevy LS Gen. III/IV, 4.8L/294, 5.7L/350, 5.3L/325, 6.0L/364, 7.0L/427, three-bolt camshaft gear attachment, works with stock components and stock tune, 32 rear-wheel hp improvement
- Advertised duration 270° int./270° exh., lift 0.570″ int./0.541″ exh., 118° LSA
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- CCA-646-200-13 – 2005–14 LS-based Gen. III/IV 5.3L/325, 6.0L/364, 6.2L/376, one-bolt camshaft gear attachment. works with stock components and tune, fits applications with AFM and without VVT, can produce 32+ hp increase in peak power
- Advertised duration 260°/270°, lift 0.570″ int./0.541″ exh., 118° LSA
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- CCA-689-201-13 – 2007–17 4.8L/294, Gen. III/IV, one-bolt camshaft gear attachment, works with stock components and stock tune, , fits applications with AFM and VVT, proven 32 rear-wheel hp improvement
- Advertised duration 274°/264°, 0.541″ int./0.541″ exh. lift, 116° LSA
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- CCA-146-201-13 -2008–17, 6.2L/376 for Gen. IV LS3 models without VVT or AFM, works with stock components and stock tune, proven 32 rear-wheel hp increase
- Advertised duration 264° int./274° exh., lift 0.541″ int./0.541″ exh., 116° LSA
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- CCA-689-199-13 – 2008–15 5.3L/325, 6.2L/376, 7.0L/427, one-bolt camshaft gear attachment, works with stock components and stock tune, fits applications with AFM and VVT, proven 32 rear-wheel hp improvement.
- Advertised duration 266° int./266° exh., lift 0.541″ int./0.541″ exh., 118° LSA
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- CCA-646-201-13 – 2005–14 5.3L/325, 6.0L/364, 6.2L/376, one-bolt camshaft gear attachment, works with stock components and stock tune, fits applications with AFM and without VVT, can produce 47+ hp increase in peak power
- Advertised duration 264° int./274° exh., 0.541 int./0.541 exh. lift, 116° LSA
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- CCA-689-200-13 – 2007–17 4.8L/294, 5.3L/325, 6.0L/364, 6.2L/376, 7.0L/427, one-bolt camshaft gear attachment, fits applications with AFM and VVT, works with stock components and stock tune, provides proven 32 rear-wheel hp improvement
- Advertised duration 270° int./260° exh., 0.541″ int./0.541″ exh. lift, 117° LSA
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- CCA-146-200-13 – 2008–17 6.2L/376, , one-bolt camshaft gear attachment, for use on models without VVT and without AFM, works with stock components and stock tune, proven 32 rear-wheel hp improvement
- Advertised duration 260° int./270° exh., lift 0.540″ int./0.540 exh., 117° LSA
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