Comp Cams Thumpr LS Engines Camshaft 3-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L

54-600-11

New product

GM LS Gen III/IV 8 Cyl. '97-Current Three-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L Engines

High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.

Intake Duration At 0.050 Inch Lift (DEG)219 Degree
Exhaust Duration At 0.050 Inch Lift (DEG)233 Degree
Intake Valve Lift (IN)0.553 Inch
Exhaust Valve Lift (IN)0.536 Inch

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CAD$599.95

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The Thumpr™ Camshafts are a series of hydraulic flat tappet and hydraulic roller Camshafts that are now available for most popular applications, carb and late model EFI. The reason that the new Thumpr™ Camshafts have such an aggressive exhaust note is that the lobe profiles and grind characteristics chosen by the COMP Cams(R) engineers produce a combination of early exhaust Valve opening, long exhaust duration and a generous amount of intake and exhaust overlap to maximize the rough idling characteristics of the cams without negatively impacting the power output or streetability. Thumpr™ cams deliver incredible muscle car sound and a new level of streetable performance.

Engine CompatibilityGM LS Gen III/IV Three-Bolt
Recommended UseMild Street Performance To Mild Race
TypeHydraulic Roller
RPM - High6400
RPM - Low2000
Intake Duration At 0.050 Inch Lift (DEG)219 Degree
Exhaust Duration At 0.050 Inch Lift (DEG)233 Degree
Advertised Intake Duration (DEG)275 Degree
Advertised Exhaust Duration (DEG)295 Degree
Intake Valve Lift (IN)0.553 Inch
Exhaust Valve Lift (IN)0.536 Inch
Lobe Separation Angle (DEG)109 Degree
Intake Centerline Angle (DEG)103 Degree
Computer-Controlled CompatibleNo
Grind Number275THR9

Features

  • Available In Both Hydraulic Flat Tappet And Hydraulic Roller Designs For Most Popular Applications, Carb And Late Model EFI
  • Three Unique Grinds For Each Engine To Fit All Cruising And Street Performance Needs
  • Long Exhaust Duration And Other Grind Characteristics Produce A Powerful, Hard Hitting Exhaust Note
  • Designed For Use With The Latest In Valve Train Component Advancements Such As Beehive™ Valve Springs, Pro Magnum™ Roller Rockers And Magnum Pushrods

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Comp Cams Thumpr LS Engines Camshaft 3-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L

Comp Cams Thumpr LS Engines Camshaft 3-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L

GM LS Gen III/IV 8 Cyl. '97-Current Three-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L Engines

High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.

Intake Duration At 0.050 Inch Lift (DEG)219 Degree
Exhaust Duration At 0.050 Inch Lift (DEG)233 Degree
Intake Valve Lift (IN)0.553 Inch
Exhaust Valve Lift (IN)0.536 Inch