Howards Cams Hydraulic/Mechanical Flat Tappet Camshaft, 4/7 Swap 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 decrease 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. 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
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.
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