LS3 SS Cam Package

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  • $ 799.98

Mast is THE leader in LS cam technology.  Want proof?  We had variable valve timing cams 18 months BEFORE anyone in the aftermarket.  We design our lobes IN HOUSE using proprietary software.  We test each cam on our NCRS Superflow engine dyno in actual applications to find the best power curve. Then, we test each profile in “real world” conditions. After many grueling hours, we select a profile to be manufactured to our precision specs, from select billet cores.

Mast Motorsports cam & valve spring package notes:

  • Each package includes a Mast dyno proven camshaft PLUS matching Mast premium beehive valve springs
  • Headers are recommended on every GM Gen IV app. to significantly enhance power improvements from camshaft swap.  Mast Motorsports recommends that every cam be accompanied by a calibrated tune using HP Tuners, EFI Live,  or equivalent software.
Application Idle Quality Cam Package Part # Duration @ .050" (In. Ex.) Valve Lift (w/1.7 Rocker) (In. Ex.) Lobe Sep. Angle Max Lift O.D. I.D. Seat Pressure (lbs. / In.) Open Pressure (lbs. / In.) Coil Bind Spring Rate (lbs.)
LS3 SS Cam Moderate 963-103 230 237 .609 .615 111 0.650 1.290"/.885" 130 @ 1.800" 318 @ 1.200" 1.080 313


    This kit, when coupled with headers, can produce a 125 hp gain at the flywheel. This cam has a moderate choppy idle.