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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: Cadillac 368-425-472-500 1968-1984
Ignition Firing Order: OE (1-5-6-3-4-2-7-8)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 2400-5600
Manufacturer's Description: Lopey idle, great mid-range torque & top end power. Needs stall.
Intake Duration @ .050": 231
Exhaust Duration @ .050": 241
Advertised Intake Duration (@ .006"): 285
Advertised Exhaust Duration (@ .006"): 295
Intake Valve Lift with OE Rocker Ratio (1.65): .528"
Exhaust Valve Lift with OE Rocker Ratio (1.65): .517"
Intake Lobe Lift: .320"
Exhaust Lobe Lift: .313"
Intake Valve Lift with 1.70 Rocker Ratio: .544"
Intake Valve Lift with 1.75 Rocker Ratio: .560"
Exhaust Valve Lift with 1.70 Rocker Ratio: .532"
Exhaust Valve Lift with 1.75 Rocker Ratio: .548"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Includes Lifters: Yes, 91311
Small Base Circle: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus ˝ Turn
Manufacturer: Howards Cams & Racing Components™
Manufacturer's Part Number: CL520071-12
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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