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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-GK35-600-8
Thumpr Retro-Fit Hydraulic Roller Camshaft, Lifters, & Gear Drive Kit Lift: .531"/.515"
$1,66595
Ships on 10/22/2026
Lowest Price GuaranteeFord 351W 8 cyl. 1969-1996 Non-Factory Roller Block Thumpr
- Thumpr Retro-Fit Hydraulic Roller Camshaft, Lifters, & Gear Drive Kit
- Lift: .531"/.515"
- Duration: 283°/303°
- Lobe Separation Angle: 107°
- RPM Range: 1900-5600
- 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
High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping 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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft Kit
BrandCOMP CAMS
Package Height5.2
Package Width10.3
Package Length25.6
Weight21.2 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)241
Cam StyleHydraulic roller tappet
Grind Number283THR7
Exh. Duration Advertised (Deg)303
Locks IncludedNo
Engine Make/SizeFord 351W
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.531
Int. Duration @ .050 In. (Deg)227
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,900-5,600
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.531 in (13.487 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)283
Lobe Separation (Deg)107
Rpm Range1900-5600
Lifter StyleHydraulic roller
Advertised Duration283 int./303 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.515
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.531 int./0.515 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.515 in (13.081 mm)
Advertised Intake Duration283
Intake Duration At 050 Inch Lift227
Exhaust Duration At 050 Inch Lift241
Timing Chain StyleGears
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration303
Lifter TypeHydraulic Roller Retrofit
Part FitmentSemi Universal
Duration At 050 Inch Lift227 int./241 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberGK35-600-8
Package Qty1
Package TypeEA
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