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Howards Cams Hydraulic Flat Tappet Camshaft
All Howards cams use the highest-grade quality cores available. Computer designed with knowledge of over 65 years of performance and racing camshaft manufacturing. Howards cams are manufactured on dedicated high precision cam grinding machines. Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Packaged and shipped in a unique hard, high impact plastic reusable case. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
Rockwell Tested & Parkerized Ensuring the Highest Quality
Part Type: Camshaft
Application: Chrysler Big Block B/RB 383-440 1959-1980
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: Retro-Fit Hydraulic Flat Tappet
Basic RPM Range: 3000-6800
Manufacturers Description: Hot pro street/brackets. Strong mid-range, needs 11.0-1 CR-up.
Intake Duration @ .050": 243
Exhaust Duration @ .050": 251
Advertised Intake Duration (@ .006"): 297
Advertised Exhaust Duration (@ .006"): 305
Intake Valve Lift with OE Rocker Ratio (1.50): .519"
Exhaust Valve Lift with OE Rocker Ratio (1.50): .540"
Intake Lobe Lift: .346"
Exhaust Lobe Lift: .360"
Intake Valve Lift with 1.55 Rocker Ratio: .536"
Intake Valve Lift with 1.60 Rocker Ratio: .554"
Intake Valve Lift with 1.65 Rocker Ratio: .571"
Exhaust Valve Lift with 1.55 Rocker Ratio: .558"
Exhaust Valve Lift with 1.60 Rocker Ratio: .576"
Exhaust Valve Lift with 1.65 Rocker Ratio: .594"
Lobe Separation Angle: 109 Degrees
Intake Centerline: 105 Degrees
Includes Lifters: No
Small Base Circle: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 722251-09
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 can not be used.
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