I just replaced all my lifters because one of them was bad. Now from what i have gathered from agout a month of research is that roller lifters do not NEED to be replaced when changing cam, but in theory because there is two metal areas in contact you should let them wear together. Do this either by replcaing the lifters and cam as a set or let the new cam wear to the lifters for a break in period.
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89 5.0 GT White w/Blue Racing Stripes
K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump
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