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COMP CAMSPART NUMBER: 249-K42-602-9
Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit Lift: .552"/.537"
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Oldsmobile 260-455 c.i. 8 cyl. 1967-1990Big Mutha Thumpr
- Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit
- Lift: .552"/.537"
- Duration: 299°/319°
- Lobe Separation Angle: 107°
- RPM Range: 2300-6100
- Complete Kit
- 3 Grinds To Fit All Of Your Performance Needs
- Long Exhaust Duration
- Produces A Powerful Hard-Hitting Exhaust Note
- Excellent Horsepower Gains And Broad Torque Curve
- Delivers Real Seat Of The Pants Performance
- Designed For Use w/Latest In ValveTrain Components
- 1 Year Limited Warranty
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight28.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)257
Cam StyleHydraulic roller tappet
Grind Number299THR7
Exh. Duration Advertised (Deg)319
Locks IncludedYes
Engine Make/SizeOlds 260-455
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.552
Int. Duration @ .050 In. (Deg)243
Assembly Lubricant IncludedNo
Basic Operating Rpm Range2,300-6,100
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.552 in (14.021 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)299
Lobe Separation (Deg)107
Rpm Range2300-6100
Lifter StyleHydraulic roller
Advertised Duration299 int./319 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.537
Valve Springs IncludedYes
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.552 int./0.537 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.537 in (13.64 mm)
Advertised Intake Duration299
Outside Diameter Of Outer Spring1.437 in (36.5 mm)
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift257
Timing Chain StyleDouble roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration319
Lifter TypeHydraulic Roller Retrofit
Duration At 050 Inch Lift243 int./257 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK42-602-9
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
