New FXR Series Flat Tappet Cams fit 1955-1998 262-400 cid small block chevys with stock .842 in lifters.

Big inch engines with good intake & exhaust system. Good heads a must! For fast 1/2-5/8 mile tracks. Camshaft profiles are designed to have more area under the curve and have a fast opening rate while remaining valve train friendly. Higher rocker ratio may be used 1.6 ratio = .600 in gross lift

• RPM Range 4500-7800
• Advertised Duration 306 / 314 deg int/exh
• Duration @ .050 lift 268 / 276 deg int/exh
• Gross Lift .562 in int/exh
• Lobe Center 106 deg
• Advance 4 deg
• Valve Lash .018 / .018
• 4-7 Swap has broader torque curve.
• Use #E915043 for dual spring, 1.580 OD, 1.950 install ht

For Lifters and Camshaft Kits see below.