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Howards Cams Lift Rule Hydraulic Flat Tappet Camshaft & Lifter Kit
These cams feature very aggressive ramp speeds and high dwell times for maximum power. This design holds the valves open for a longer period of time at maximum lift. Howards Lift Rule camshafts use proprietary lobes that not only produce maximum power, but also last longer than most of their competitors. Howards Lift Rule camshafts use the highest-grade race quality cores available. Manufactured on dedicated high precision cam grinding machines. Testing after manufacturing is handle by an Adcole 911. The Adcole 911 verifies all critical dimensions to ensure you get a superior camshaft. These cams are then packaged and shipped in unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
Very aggressive ramp speeds
High dwell times at maximum lift
High grade race quality cores
Adcole tested
Hard protective packaging
Part Type: Camshaft & Lifter Kit
Model: Lift Rule Hydraulic
Usage: Lift Rule Oval Track, Road Race & NHRA Stock Eliminator classes
Application: Chevrolet Small Block V8 262-267-302-305-307-327-350-400, '55-'98
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 3800-7000
Manufacturers Description: .420" Lift Rule, high banked 1/2 mile tracks.
Intake Duration @ .050": 249
Exhaust Duration @ .050": 253
Advertised Intake Duration (@ .006"): 302
Advertised Exhaust Duration (@ .006"): 306
Intake Valve Lift with OE Rocker Ratio (1.50): .420"
Exhaust Valve Lift with OE Rocker Ratio (1.50): .420"
Intake Lobe Lift: .280"
Exhaust Lobe Lift: .280"
Intake Valve Lift with 1.55 Rocker Ratio: .434"
Intake Valve Lift with 1.60 Rocker Ratio: .448"
Intake Valve Lift with 1.65 Rocker Ratio: .462"
Exhaust Valve Lift with 1.55 Rocker Ratio: .434"
Exhaust Valve Lift with 1.60 Rocker Ratio: .448"
Exhaust Valve Lift with 1.65 Rocker Ratio: .462"
Lobe Separation Angle: 106 Degrees
Intake Centerline: 102 Degrees
Small Base Circle: No
Cam Gear Attachment: 3-Bolt
Lifters Included: Yes, 91112
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: CL112741-06
Weight: 10.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Oil with ZDDP or ZDDP Additive Required.
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