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Product Discontinued
COMP CAMSPART NUMBER: 249-31-602-8
Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Lift: .552"/.537"
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Ford 221-302ci 1963-1995 Non-Factory Roller BlockBig Mutha Thumpr
- Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft
- Lift: .552"/.537"
- Duration: 299°/319°
- Lobe Separation Angle: 107°
- RPM Range: 2500-6200
Big Mutha' Thumpr™-Street/ strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.Ford; SBF; Mustang; Windsor; Fairlane; Meteor; Mercury; GT; 22; 260; Sunbeam; Tiger; 289; 302; 351; 289; HiPo; K-Code; GT-350; Shelby; Boss; 5.0; 308; Windsor; Torino; Cougar; F-150; Squire; Thunderbird; LTD; Galaxie; Grand Marquis
Street/ strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Part TypeCamshaft
BrandCOMP CAMS
Package Height3.0
Package Width3.1
Package Length24.4
Weight7.67 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)257
Cam StyleHydraulic roller tappet
Grind Number299THR7
Exh. Duration Advertised (Deg)319
Engine Make/SizeFord 221-302
Intake Valve Lift With Factory Rocker Arm Ratio (I0.552
Int. Duration @ .050 In. (Deg)243
Basic Operating Rpm Range2,500-6,200
Intake Valve Lift0.552 in (14.021 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)299
Lobe Separation (Deg)107
Rpm Range2500-6200
Advertised Duration299 int./319 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.537
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.552 int./0.537 exh.
QuantitySold individually
Exhaust Valve Lift0.537 in (13.64 mm)
Advertised Intake Duration299
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift257
Advertised Exhaust Duration319
Lifter TypeHydraulic Roller Retrofit
Part FitmentSemi Universal
Duration At 050 Inch Lift243 int./257 exh.
Valve Springs RequiredYes
Vendor Part Number31-602-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
