Engine Kits

1963-95 Ford 289-302 Big Mutha Thumpr Hydraulic Camshaft
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1963-95 Ford 289-302 Big Mutha Thumpr Hydraulic Camshaft

Part #: 31-603-5
List Price: $429.73
Our Price: $190.99
You Save: $238.74

Ford 289-302 C.I. 8 cyl. 1963-1995.  Big Mutha' Thumpr™ : Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.  Hydraulic Flat Tappet Camshaft.


RPM Range: 2200 to 6100
Valve Timing: .006
Lobe Seperation: 107 degrees
Intake Centerline: 102 degrees
Valve Lash (Int/Exh): Hyd. / Hyd
Duration (Int/Exh): 287/304
Duration @ .050" Lift (Int/Exh): 235/249
Valve Lift: .500 / .486
Lobe Lift (Int/Exh): .3130 / .3040
Duration (Int/Exh): 287/304
Duration (Int/Exh): 287/304
Duration (Int/Exh): 287/304

Let's face it, nothing grabs our attention at a car show or cruise night more than the hard hitting sound a thumping, high performance idle. Thumpr™ Camshafts deliver that aggressive, head-turning sound like no other cam on the market. Available in hydraulic flat tappet and hydraulic roller camshafts, Thumpr™ Cams are now available for most popular applications, carb and late model efi.

Designed to provide maximum performance when combined with the latest in valve train components, such as Beehive™ Valve Springs, Ultra Pro Magnum™ Rockers and Magnum™ Pushrods
Brand COMP Cams
Product Line COMP Cams Thumpr Hydraulic Flat Tappet Camshafts