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Howards Cams Hydraulic Flat Tappet Camshaft & Lifter Set
From the humble beginnings to an industry leader today, Howards Cams has not forgotten the customer. Howards Cams main objective is to produce the highest quality product at a reasonable price. The name Howards Cams had been synonymous with high performance camshafts since 1945. A great number of valve train innovations can be traced back to Howards Cams. From pioneers in drag racing and oval track cams to cutting edge marine development, Howards Cams is at the forefront of the camshaft industry.
Note: Always use Camshaft Break-In Lube with all new flat tappet cams.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
Rockwell Tested & Parkerized Ensuring the Highest Quality
Part Type: Camshaft & Lifter Set
Application: American Motors (AMC) 290-401 1966-1991
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Camshaft/Lifter Style: Hydraulic Flat Tappet
Basic RPM Range: 1200-5200
Manufacturer's Description: Good Idle, Street, Off-Road, Towing. Good Fuel Efficency.
Intake Duration @ .050": 215
Exhaust Duration @ .050": 215
Advertised Intake Duration (@ .006"): 269
Advertised Exhaust Duration (@ .006"): 269
Intake Valve Lift with OE Rocker Ratio (1.60): .475"
Exhaust Valve Lift with OE Rocker Ratio (1.60): .475"
Intake Lobe Lift: .297"
Exhaust Lobe Lift: .297"
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: .490"
Exhaust Valve Lift with 1.70 Rocker Ratio: .505"
Exhaust Valve Lift with 1.72 Rocker Ratio: .510"
Lobe Separation Angle: 111 Degrees
Intake Centerline: 107 Degrees
Lifters Included: Yes, 91711
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: CL312481-11
Weight: 14.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Set
Note: Oil with ZDDP or ZDDP Additive Required
Note: Stock (O.E) valve springs cannot be used.
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