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Part number: CL12-770-8
Product Details
Comp Cams CL12-770-8 Xtreme Energy Camshaft/Lifter Kit
Products specifications
Advertised Duration 274 int./280 exh.
Advertised Exhaust Duration 280
Advertised Intake Duration 274
Assembly Lubricant Included Yes
Basic Operating RPM Range 2,200-6,200
Cam Style Mechanical roller tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 236 int./242 exh.
Exhaust Duration at 050 inch Lift 242
Exhaust Valve Lash 0.018 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.570 in.
Gaskets Included No
Grind Number CS XR274 R-10
Intake Duration at 050 inch Lift 236
Intake Valve Lash 0.016 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.564 in.
Lifter Style Mechanical roller
Lifters Included Yes
Lobe Separation (degrees) 110
Locks Included No
Notes Requires thrust button and wear plate.
Pushrods Included No
Quantity Sold as a kit.
Retainers Included No
Rocker Arms Included No
Timing Chain and Gears Included No
Valve Lift with Factory Rocker Arm Ratio 0.564 int./0.570 exh. lift
Valve Springs Included No
Valve Springs Required Yes
Valve Stem Seals Included No
Title CL12-770-8 Cam and Lifter Kit, CS XR274
Engine Make/Size Chevy Small Block (262-400)
RPM Range 2000-9000
Usage Street/Performance
Exh. Duration @ .050 in. (Deg) 242
Exh. Duration Advertised (Deg) 280
Exhaust Valve Lift (in.) 0.57
Int. Duration @ .050 in. (Deg) 236
Int. Duration Advertised (Deg) 274
Intake Valve Lift (in.) 0.564
Lifter Type Mechanical Roller
  • Produces Better Throttle Response
  • Produces Top Engine Horsepower
  • Delivers Increased Engine Vacuum
  • 1 Year Limited Warranty
Reviews
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I
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J
Autoplicity has a great selection of parts and wonderful customer service.
T
Best price and super fast shipping.  Only issue was that their online order status system was really far behind!  The system said my order was "pending" and it had been shipped.  Later it said "processing" and it was on my doorstep.  Not a big deal and certainly better than the opposite (they tell you something has happened when it hasn't) and doesn't keep them from being a 5 star seller in my book.
W
competitive prices and good selection. Will definitely look to this vendor when purchasing automotive parts in the future. I ordered a roof rack and it was very hard to find elsewhere and the few places I did find it, it was more expensive.. it was cheap and easy here. thanks :)
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