429 460 Cobra Jet Aluminum Cylinder Head Assembled Ford Racing Part M-6048-SCJ

Fits 429 and 460 ci engines (except BOSS 429). Production 429 Cobra Jet intake and exhaust manifolds bolt on. Mustang Cobra Jet 1968-1987 Cylinder Head Assembled with Dual Springs. Assembled with hydraulic roller valve springs: Closed seat pressure 135# @ 1.850"; Open seat pressure 365# @ 1.250"; Max lift. 700".