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Howards Cams™ Mechanical 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 V8 290-401 1966-1991
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: Mechanical Flat Tappet
Basic RPM Range: 2800-6200
Manufacturer's Description: Street/strip. Needs 10.0+ CR, 2500+ Stall & gears.
Intake Duration @ .050": 277
Exhaust Duration @ .050": 281
Advertised Intake Duration (@ .006"): 242
Advertised Exhaust Duration (@ .006"): 246
Intake Valve Lift with OE Rocker Ratio (1.60): .544"
Exhaust Valve Lift with OE Rocker Ratio (1.60): .549"
Intake Lobe Lift: .340"
Exhaust Lobe Lift: .343"
Intake Valve Lift with 1.65 Rocker Ratio: .561"
Intake Valve Lift with 1.70 Rocker Ratio: .578"
Intake Valve Lift with 1.72 Rocker Ratio: .585"
Exhaust Valve Lift with 1.65 Rocker Ratio: .567"
Exhaust Valve Lift with 1.70 Rocker Ratio: .584"
Exhaust Valve Lift with 1.72 Rocker Ratio: .591"
Lobe Separation Angle: 108 Degrees
Intake Centerline: 104 Degrees
Lifters Included: Yes, 91715
Small Base Circle: No
Cam Gear Attachment: 3-Bolt
Intake Valve Adjustment: .022"
Exhaust Valve Adjustment: .022"
Manufacturer: Howards Cams & Racing Components™
Manufacturer's Part Number: CL312012-08
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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