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Howards Cams American Muscle Hydraulic Roller Camshaft
Near duplicates of some of the most iconic original equipment camshaft grinds from the '60's to the early '70's. Howards Cams took these fantastic grinds and made slight changes to the ramp speeds and minor duration changes to give you better reliability and horsepower. You still get the same throttle response and of course the original style exhaust rumble. Great cams for restoration projects and perfect for the street machines.
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: American Muscle
Application: Chevrolet Gen III/IV LS-Series 3-Bolt 1997-Present
Ignition Firing Order: (1-8-7-2-6-5-4-3)
Cam Style: Hydraulic Roller Camshaft
Basic RPM Range: 1700-6700
Manufacturer's Description: Our version of the GM hot cam, advanced lobe design for increased performance.
Intake Duration @ .050": 219
Exhaust Duration @ .050": 228
Advertised Intake Duration (@ .006"): 267
Advertised Exhaust Duration (@ .006"): 276
Intake Valve Lift with OE Rocker Ratio (1.70): .525"
Exhaust Valve Lift with OE Rocker Ratio (1.70): .525"
Intake Lobe Lift: .308"
Exhaust Lobe Lift: .308"
Intake Valve Lift with 1.72 Rocker Ratio: .531"
Intake Valve Lift with 1.75 Rocker Ratio: .540"
Intake Valve Lift with 1.80 Rocker Ratio: .556"
Exhaust Valve Lift with 1.72 Rocker Ratio: .531"
Exhaust Valve Lift with 1.75 Rocker Ratio: .540"
Exhaust Valve Lift with 1.80 Rocker Ratio: .556"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Lifters Included: No
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: 197245-12
Weight: 10.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Requires custom programmer/tuning.
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