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Howards Cams Street Force Hydraulic Flat Tappet Camshaft
Designed for the street performance enthusiast. They feature true street performance with little or no added maintenance. These grinds feature lobes designed to be easy on the valvetrain, and add useable torque, horsepower and throttle response. They also have 112 degree lobe separations to help maintain vacuum. Street Force 1 cams are great for engines with minor or no additional improvements. A good dual plane intake and dual exhaust is great for additional performance.
Note: Some applications may require a vacuum canister or pump.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
100% Rockwell Tested & Parkerized Ensuring the Highest Quality
Hard protective packaging
Part Type: Camshaft
Cam Series: Street Force
Application: Chevrolet Small Block 262-400 1955-1998
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 1000-5000
Manufacturer's Description: Street Force 1, good idle, mild street performance, strong low end torque.
Intake Duration @ .050": 205
Exhaust Duration @ .050": 215
Advertised Intake Duration (@ .006"): 259
Advertised Exhaust Duration (@ .006"): 269
Intake Valve Lift with OE Rocker Ratio (1.50): .420"
Exhaust Valve Lift with OE Rocker Ratio (1.50): .455"
Intake Lobe Lift: .280"
Exhaust Lobe Lift: .303"
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: .470"
Exhaust Valve Lift with 1.60 Rocker Ratio: .485"
Exhaust Valve Lift with 1.65 Rocker Ratio: .500"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Lifters Included: No
Small Base Circle: Yes
Cam Gear Attachment: 3-Bolt
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 112561-12S
Weight: 10.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Stock (O.E.) valve springs cannot be used.
Note: Oil with ZDDP or ZDDP Additive Required.
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