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COMP Cams Camshaft 513304

Authorized Dealer
Brand: COMP Cams COMP Cams
0 reviews
  • Have a product question? Ask us
  • Part Number: 51-330-4
  • Part Location: U.S.
  • Availability: *Special Order
  • Delivery: Up to 2 Weeks
  • If purchased before 12:00 EDT - estimated delivery by April 30
Retail: $309.74
Price: $294.99
You Save: $14.75
Advertised Exhaust Duration (DEG)
312-5 Degree
Advertised Intake Duration (DEG)
305-2 Degree
Computer-Controlled Compatible
No
Engine Compatibility
Pontiac V8 265-455 Cubic Inch
Exhaust Duration At 0.050 Inch Lift (DEG)
260 Degree
Exhaust Valve Lift (IN)
0.54 Inch
Grind Number
305AH-8
Intake Duration At 0.050 Inch Lift (DEG)
253 Degree
Intake Valve Lift (IN)
0.525 Inch
Lobe Separation Angle (DEG)
108 Degree
Recommended Use
Mild Street Performance To Mild Race
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COMP Cams Camshaft

Camshaft; Classic Series.; Pontiac 4.3L-7.5L/265-455 Cubic Inch; Hydraulic; 253 Degree Intake Duration @ 0.050 Inch Lift; 260 Degree Exhaust Duration @ 0.050 Inch Lift; 0.525 Inch Intake Valve Lift; 0.540 Inch Exhaust Valve Lift; 108 Degree Lobe Separation

MPN: 513304

A popular street Camshaft used with original overhead Valve OEM engines, the hydraulic flat tappet cam is commonly used up to mildly aggressive performance profiles. The flat tappet lifter has a flat appearing base (this surface is actually slightly crowned) that rides on the cam lobe face, rotating slowly within the lifter bore to promote proper oiling. Internally, the lifter features a cavity that fills with oil and a piston that is depressed by the pushrod (and Valve spring). This “Hydraulic Chamber” provides a cushion of fluid to soften the impact on the Valve Train, creating room for expansion as the Engine reaches operating temperature. Hydraulic flat tappet Camshafts deliver quiet operation at street to mild racing Engine speeds. The biggest advantage to hydraulic flat tappet lifters is that they do not require constant maintenance to ensure proper Valve lash. Hydraulic flat tappet camshafts/Lifters are pre loaded at initial start-up and require little, if any, maintenance from that point forward. Flat tappet lifters can only be used once per Camshaft and must be replaced due to wear patterns created by the direct contact of the cam with the lifter base.
Engine Compatibility: Pontiac V8 265-455 Cubic Inch
Recommended Use: Mild Street Performance To Mild Race
Type: Hydraulic
RPM - Low: 3000
RPM - High: 6800
Intake Duration At 0.050 Inch Lift (DEG): 253 Degree
Exhaust Duration At 0.050 Inch Lift (DEG): 260 Degree
Advertised Intake Duration (DEG): 305-2 Degree
Advertised Exhaust Duration (DEG): 312-5 Degree
Intake Valve Lift (IN): 0.525 Inch
Exhaust Valve Lift (IN): 0.54 Inch
Lobe Separation Angle (DEG): 108 Degree
Grind Number: 305AH-8
Computer-Controlled Compatible: No

Features

  • Minimal Maintenance
  • Little Or No Valve Train Noise
  • Economical Cost
  • Limited 1 Year Warranty
Specifications of COMP Cams Camshaft 513304
Advertised Exhaust Duration (DEG) 312-5 Degree
Advertised Intake Duration (DEG) 305-2 Degree
Computer-Controlled Compatible No
Engine Compatibility Pontiac V8 265-455 Cubic Inch
Exhaust Duration At 0.050 Inch Lift (DEG) 260 Degree
Exhaust Valve Lift (IN) 0.54 Inch
Grind Number 305AH-8
Intake Duration At 0.050 Inch Lift (DEG) 253 Degree
Intake Valve Lift (IN) 0.525 Inch
Lobe Separation Angle (DEG) 108 Degree
Recommended Use Mild Street Performance To Mild Race
RPM - High 6800
RPM - Low 3000
Type Hydraulic

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