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Part number: K12-423-8
Product Details
Comp Cams K12-423-8 Xtreme Energy Camshaft Kit
Products specifications
Advertised Duration 276 int./282 exh.
Advertised Exhaust Duration 282
Advertised Intake Duration 276
Assembly Lubricant Included Yes
Basic Operating RPM Range 1,900-5,600
Cam Style Hydraulic roller tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 224 int./230 exh.
Exhaust Duration at 050 inch Lift 230
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Gaskets Included No
Grind Number CS XR276HR-10
Intake Duration at 050 inch Lift 224
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.502 in.
Lifter Style Hydraulic roller
Lifters Included Yes
Lobe Separation (degrees) 110
Locks Included Yes
Notes Requires thrust button and wear plate.
Outside Diameter of Outer Spring (in) 1.430 in.
Pushrods Included No
Quantity Sold as a kit.
Retainers Included Yes
Rocker Arms Included No
Timing Chain and Gears Included Yes
Timing Chain Style Double non-roller
Valve Lift with Factory Rocker Arm Ratio 0.502 int./0.510 exh. lift
Valve Springs Included Yes
Valve Springs Required No
Valve Stem Seals Included Yes
Title K12-423-8 CamShaft Kit, CS 276H-R10
Engine Make/Size Chevy Small Block (262-400)
RPM Range 1000-7000
Usage Street/Performance
Exh. Duration @ .050 in. (Deg) 230
Exh. Duration Advertised (Deg) 282
Exhaust Valve Lift (in.) 0.51
Int. Duration @ .050 in. (Deg) 224
Int. Duration Advertised (Deg) 276
Intake Valve Lift (in.) 0.502
Lifter Type Hydraulic Roller
  • Produces Better Throttle Response
  • Produces Top Engine Horsepower
  • Delivers Increased Engine Vacuum
  • 1 Year Limited Warranty
Reviews
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L
Not only was our item cheaper, it arrived quickly. Will def. purchase from Autoplicity again! Thanks!
S
Bought the Hella Supertones here for at least $5 cheaper than anywhere else online i found and received it in hand less than a week later.  would highly recommend
H
EXCELLENT PRICING, EXCELLENT ITEM, AS DESCRIBED, GOT IT VERY FAST, DEFINATLEY WILL DO BUSINESS AGAIN
A
Site use was easy, and product shipped promptly after ordering.  Price was the best I could find, would use this business again.
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