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Part number: 54-476-11
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Product Details
Comp Cams 54-476-11 LS1 Camshaft Hydraulic Roller
Products specifications
Advertised Duration 309 int./325 exh.
Advertised Exhaust Duration 325
Advertised Intake Duration 309
Basic Operating RPM Range 3,000-7,200
Cam Style Hydraulic roller tappet
Camshaft Gear Attachment 3-bolt
Computer-Controlled Compatible Yes
Duration at 050 inch Lift 259 int./275 exh.
Exhaust Duration at 050 inch Lift 275
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.624 in.
Grind Number 309LRRHR15
Intake Duration at 050 inch Lift 259
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.624 in.
Lobe Separation (degrees) 115
Notes Requires computer tuning in stock EFI applications.
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.624 int./0.624 exh. lift
Valve Springs Required Yes
Title 54-476-11 CamShaft, LS1 309LRR HR-115
Engine Make/Size Chevy Small Block LS1
RPM Range 3000-7200
Usage Street/Performance
Exh. Duration @ .050 in. (Deg) 275
Exh. Duration Advertised (Deg) 325
Exhaust Valve Lift (in.) 0.624
Int. Duration @ .050 in. (Deg) 259
Int. Duration Advertised (Deg) 309
Intake Valve Lift (in.) 0.624
Lifter Type Hydraulic Roller
  • All Out Power
  • Extreme Displacement Race Applications
  • Engines w/Cathedral Port Cylinder Heads
  • 1 Year Limited Warranty
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I found autoplicity while trying to locate a side mirror for my vehicle.  The website is user friendly and the prices are fantastic!  The product is also shipped quickly...  I am definitely going to purchase from Autoplicity again!
I like the free shipping, found cheaper prices else where but with your free shipping it was less money!
Lowest price on the INTERNET!!! I searched for days and nobody could even come close to their price. They provided excellent feedback on my order status including shipping and tracking numbers.
Great parts selection and customer service. Little slow shipping
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