Overview Reviews Product Description SOHC - Xtreme Energy: Street/strip, needs lower gear ratio, 2400+ stall. Intake, exhaust and custom tuning required. Rough idle. COMP Cams Xtreme Energy 278AH-13 Camshaft Set for 4.6L and 5.4L SOHC Modular 2 Valve Ford with 1999-up Performance Improvement Heads SOHC - Xtreme Energy: Street/strip, needs lower gear ratio, 2400+ stall. Intake, exhaust and custom tuning required. Rough idle.; 278/282 Advertised Duration, 242/246 Duration .050", .550"/.550" Lift, 113 Lobe Separation; Requires cam gear set part #10246SET; Requires part #26113-16 valve springs and either 792-16 steel retainers or 791-16 titanium retainers; Part #26125-16 high load valve springs also available Product Videos Custom Field Product Reviews Write a Review Write a Review × COMP Cams COMP Cams Camshaft Set F4.6S XE278Ah-13 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
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