Engine Kits

Mutha' Thumpr™, 287TH7 High Performance Street/Strip, Rough Idle
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Mutha' Thumpr™, 287TH7 High Performance Street/Strip, Rough Idle



Part #: 11-601-4
List Price: $287.98
Our Price: $143.99
You Save: $143.99

Availability: In Stock



Big Block Chevy 396-454, MARK IV 1965-1996 287T H-107 Mutha Thumpr™ hydraulic Flat Tappet Cam. Mutha' Thumpr™ - High performance street/strip, needs 9:1 CR, 2400+ stall, intake, gears, and headers, rough idle

RPM

CAM

DURATION

  VALVE LIFT

Lobe

OPERATING

Grind

ADVERTISED

@ .050”

@ 1.5:1

Sep

Range

Number

IN.

EX.

IN.

EX.

IN.

EX.

Angle

2000-5900

287TH7

287

304

235

249

.510

.495

107°

Musclecar sound is back and nastier than ever;
Thumpr™ Cams deliver incredible exhaust lope and impressive performance

Part Number 11-601-4
Engine 1965-1996 Chevrolet
396ci-454ci
8cyl.
Grind Number CB287T H-107 T
Description BBC Motha Thumpr Hydraulic FT  

  Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.51 0.495
Duration At 0.006 Tappet Lift 287 304

Valve Timing At 0.006    
  Open Close
Intake 40 80
Exhaust 67 45

These Specs Are For The Cam Installed At 102 Intake CL
  Intake Exhaust
Duration At 0.05 235 249
Lobe Lift 0.3 0.291
Lobe Separation 107  

Recommended Valve Springs 924-16

Advertised Duration 287 int./304 exh.
Advertised Exhaust Duration 304
Advertised Intake Duration 287
Basic Operating RPM Range 2,000-5,900
Brand COMP Cams
Cam Style Hydraulic flat tappet
Camshaft Gear Attachment 3-bolt
Computer-Controlled Compatible No
Duration at 050 inch Lift 235 int./249 exh.
Exhaust Duration at 050 inch Lift 249
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.495 in.
Grind Number 287TH7
Intake Duration at 050 inch Lift 235
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Lobe Separation (degrees) 107
Part Type Camshafts
Product Line COMP Cams Thumpr Hydraulic Flat Tappet Camshafts
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.510 int./0.495 exh. lift

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