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Howards Cams Street Force Hydraulic Flat Tappet Camshaft & Lifter Set
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 2 are designed for engines with improved intake and exhaust. Ignition improvements along with 1600-1800 torque converter really wakes this combo up.
Note: Some applications may require a vacuum canister or pump.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
Rockwell Tested & Parkerized Ensuring the Highest Quality
Includes Matching Premium Lifters
Part Type: Camshaft & Lifter Set
Application: Ford Small Block V8 351W 1969-1996
Ignition Firing Order: OE (1-5-4-2-6-3-7-8)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 1500-5400
Manufacturers Description: Street Force 2, Good idle, & throttle response. Needs 4 barrel & good exhaust.
Intake Duration @ .050": 215
Exhaust Duration @ .050": 223
Advertised Intake Duration (@ .006"): 296
Advertised Exhaust Duration (@ .006"): 277
Intake Valve Lift with OE Rocker Ratio (1.60): .475"
Exhaust Valve Lift with OE Rocker Ratio (1.60): .496"
Intake Lobe Lift: .297"
Exhaust Lobe Lift: .310"
Intake Valve Lift with 1.65 Rocker Ratio: .490"
Intake Valve Lift with 1.70 Rocker Ratio: .505"
Intake Valve Lift with 1.72 Rocker Ratio: .510"
Exhaust Valve Lift with 1.65 Rocker Ratio: .512"
Exhaust Valve Lift with 1.70 Rocker Ratio: .527"
Exhaust Valve Lift with 1.72 Rocker Ratio: .533"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Lifters Included: Yes, 91211, Performance Hydraulic Flat Tappet
Small Base Circle: No
Cam Gear Attachment: 3-Bolt
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: CL220031-12
Weight: 10.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Oil with ZDDP or ZDDP Additive Required
Note: Stock (O.E.) valve springs cannot be used.
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