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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-GK35-602-8
Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft, Lifters, & Gear Drive Kit Lift: .552"/.538"
$1,66595
Ships on 10/22/2026
Lowest Price GuaranteeFord 351W 8 cyl. 1969-1996 Non-Factory Roller Block Big Mutha Thumpr
- Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft, Lifters, & Gear Drive Kit
- Lift: .552"/.538"
- Duration: 299°/319°
- Lobe Separation Angle: 107°
- RPM Range: 2500-6200
- Camshaft/Lifter/Gear Drive Kit
- Precision Machined
- Heat treated Billet Steel Gears
- 3-Way Crank Sprocket
- 4 deg. Maximum Advance Or Retard
- Ready To Install Kit Incl. Bolts And Lock Plates
- Perfect Addition For Street Performance Vehicles
- 1 Year Limited Warranty
Ford, 351W, Windsor, 351 Windsor, 302, 5.0 HO, Explorer, Mutang, Ford Mustang, 408, 347, Fox Body Mustang, Fox Body, 302 HO, Cougar, F100, F150
Street/ strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight22.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)243
Cam StyleHydraulic roller tappet
Grind Number299THR7
Exh. Duration Advertised (Deg)299
Locks IncludedNo
Engine Make/SizeFord 351W
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.552
Int. Duration @ .050 In. (Deg)257
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,500-6,200
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.552 in (14.021 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)319
Lobe Separation (Deg)107
Rpm Range2500-6200
Lifter StyleHydraulic roller
Advertised Duration299 int./319 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.538
Valve Springs IncludedNo
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.552 int./0.538 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.538 in (13.665 mm)
Advertised Intake Duration299
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift257
Timing Chain StyleGears
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration319
Lifter TypeHydraulic Roller Retrofit
Part FitmentSemi Universal
Duration At 050 Inch Lift243 int./257 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberGK35-602-8
Package Qty1
Package TypeEA
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