Howards Rattler Hydraulic Flat Tappet Camshaft
The best of both worlds. The performance of a high lift roller cam with the easy maintenance and durability of a hydraulic. These Rattler Cams are for street enthusiasts who want the classis exhaust sound, but also want true performance to go with it. Great for street/strip and bracket racing too. Reduce friction, increase torque and horsepower. They give you the performance and throttle response you expect from a performance cam. Rockwell checked to ensure the highest quality control standards available anywhere. If you want both sound and performance, you need a Howards Cams Rattler.
Note: to get the best exhaust note, you should use a good dual exhaust system without a cross-over. A cross over will add minor performance, but mellow the exhaust tone.
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: Ford 351C/M-400 1970-1983
Ignition Firing Order: OE (1-3-7-2-6-5-4-8)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 2400-6200
Manufacturers Description: Big Daddy Rattler, Rough idle, pro street or street/strip. Needs 9.5:1 compression, 2800+ stall.
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 (1.73): .553"
Exhaust Valve Lift with OE Rocker Ratio (1.73): .571"
Intake Lobe Lift: .319"
Exhaust Lobe Lift: .330"
Intake Valve Lift with 1.70 Rocker Ratio: .543"
Intake Valve Lift with 1.75 Rocker Ratio: .559"
Intake Valve Lift with 1.80 Rocker Ratio: .575"
Exhaust Valve Lift with 1.70 Rocker Ratio: .561"
Exhaust Valve Lift with 1.75 Rocker Ratio: .578"
Exhaust Valve Lift with 1.80 Rocker Ratio: .594"
Lobe Separation Angle: 109 Degrees
Intake Centerline: 103 Degrees
Small Base Circle: No
Lifters Included: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus 1/2 Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 238101-09
Weight: 14.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Oil with ZDDP or ZDDP Additive (Included) Required.
Note: Stock (O.E) valve springs cannot be used.
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