Howards Cams Street Force Hydraulic Flat Tappet Cam & 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 deg. lobe separations to help maintain vacuum.
Note: Some applications may require a vacuum canister or pump.
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.
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 and Lifter Set
Application: American Motors L6 199-258/4.0L 1964-1995
Ignition Firing Order: OE (1-5-3-6-2-4)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 1000-4400
Manufacturer's Description: Street Force 1, Good idle, mild street performance, strong low end torque.
Intake Duration @ .050": 203
Exhaust Duration @ .050": 209
Advertised Intake Duration (@ .006"): 257
Advertised Exhaust Duration (@ .006"): 263
Intake Valve Lift with OE Rocker Ratio (1.60): .443"
Exhaust Valve Lift with OE Rocker Ratio (1.60): .448"
Intake Lobe Lift: .276"
Exhaust Lobe Lift: .280"
Intake Valve Lift with 1.65 Rocker Ratio: .457"
Intake Valve Lift with 1.70 Rocker Ratio: .470"
Intake Valve Lift with 1.72 Rocker Ratio: .476"
Exhaust Valve Lift with 1.65 Rocker Ratio: .462"
Exhaust Valve Lift with 1.70 Rocker Ratio: .476"
Exhaust Valve Lift with 1.72 Rocker Ratio: .482"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Small Base Circle: No
Lifters Included: Yes, 91711-12
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: CL330111-12
Weight: 14.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Set
Note: Oil with ZDDP or ZDDP Additive Required.
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