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Jrp79
October 8th, 2019, 04:22 PM
99 f250 with a 03 5.4 motor.. i know the 5.4 motors are picky on plugs and i know autolite or motorcraft but single or double platinum? My old motor had double and the 03 has double but was told to stick with single

glc
October 8th, 2019, 09:07 PM
Motorcraft SP479. Do not use antiseize, torque them to 28 ft/lb.