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The Ford Racing Super Cobra Jet cylinder head assembled with dual springs and damper updates the 429 Cobra Jet design with revised valve angles and repositioned valves plus redesigned combustion chambers to reduce cylinder wall shrouding and boost flow. It retains the same valves, springs, retainers and 7/16 in. stud-mounted roller rockers as existing Cobra Jet heads, accepts standard Cobra Jet intake and exhaust manifolds, and can deliver an estimated 25–50 HP increase depending on displacement and camshaft.
Ford Racing Super Cobra Jet Cylinder Head Assembled with Dual Springs W/Damper
