Howards Cams Mechanical Flat Tappet Camshaft
By switching the firing order (1-8-7-3-6-5-4-2) on your favorite Chev V8, you will discover a broader, smoother torque curve and decreased in crankshaft deflection. More aggressive profiles can be used to get the most manageable horsepower available. These cams require no additional engine modifications, other than swapping the #4 ignition wire with #7.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
100% Rockwell Tested & Parkerized Ensuring the Highest Quality
Hard protective packaging
Part Type: Camshaft
Cam Series: 4/7 Swap
Application: Chevrolet Small Block 262-400 1955-1998
Ignition Firing Order: (1-8-7-3-6-5-4-2)
Cam Style: Mechanical Flat Tappet
Basic RPM Range: 3800-7200
Manufacturer's Description: Drag race with 4000+ stall, 11.0:1+ CR, best with 1.6 intake rockers.
Intake Duration @ .050": 256
Exhaust Duration @ .050": 266
Advertised Intake Duration (@ .020"): 291
Advertised Exhaust Duration (@ .020"): 301
Intake Valve Lift with OE Rocker Ratio (1.50): .535"
Exhaust Valve Lift with OE Rocker Ratio (1.50): .555"
Intake Lobe Lift: .356"
Exhaust Lobe Lift: .370"
Intake Valve Lift with 1.55 Rocker Ratio: .553"
Intake Valve Lift with 1.60 Rocker Ratio: .571"
Intake Valve Lift with 1.65 Rocker Ratio: .588"
Exhaust Valve Lift with 1.55 Rocker Ratio: .574"
Exhaust Valve Lift with 1.60 Rocker Ratio: .592"
Exhaust Valve Lift with 1.65 Rocker Ratio: .611"
Lobe Separation Angle: 106 Degrees
Intake Centerline: 102 Degrees
Lifters Included: No
Small Base Circle: No
Cam Gear Attachment: 3-Bolt
Valve Adjustment: .022/.022
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 114012-06
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.
Note: Ignition firing order must be changed to 1-8-7-3-6-5-4-2. |