Howards Cams Mechanical Flat Tappet Camshaft
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 has 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
Hard protective packaging
Part Type: Camshaft
Application: Chevrolet Big Block Mark IV 396-502 1965-1996
Ignition Firing Order: OE (1-8-4-3-6-5-7-2)
Cam Style: American Muscle™ Mechanical Flat Tappet
Basic RPM Range: 2800-6800
Manufacturers Description: Near duplicate of the Chev L88 430HP/427 cam (GM #3928911).
Intake Duration @ .050": 264
Exhaust Duration @ .050": 270
Advertised Intake Duration (@ .020"): 342
Advertised Exhaust Duration (@ .020"): 333
Intake Valve Lift with OE Rocker Ratio (1.50): .579"
Exhaust Valve Lift with OE Rocker Ratio (1.50): .600"
Intake Lobe Lift: .340"
Exhaust Lobe Lift: .352"
Intake Valve Lift with 1.55 Rocker Ratio: .527"
Intake Valve Lift with 1.60 Rocker Ratio: .545"
Intake Valve Lift with 1.65 Rocker Ratio: .562"
Exhaust Valve Lift with 1.55 Rocker Ratio: .546"
Exhaust Valve Lift with 1.60 Rocker Ratio: .565"
Exhaust Valve Lift with 1.65 Rocker Ratio: .582"
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Small Base Circle: No
Cam Gear Attachment: 3-Bolt
Valve Adjustment Intake: .022"
Valve Adjustment Exhaust: .026"
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 127522-12
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. |