[Michael C Henry]

Better check which heads your using .Bolt patterns differ on original heads full sized cars and trucks use over and under fairlane and mustang use front and behind each port. Some after market heads have both patterns.Em made a set of headers for my car. They had both patterns but the ears for the outside holes for outside pipes weree missing giving me 14 bolts to clamp each header. Some of the inside bolts ( 4 ) were so close I couldn't get the Stage 8 locks on so I drilled those bolt heads and safety wired them.