Mustang MonthlyHow To Tech Qa
Boss 302 Coil Bracket and more Vintage Mustang Concours Technical Questions Answered
Boss 302 Coil Bracket
I have a question on what type of bolt was used and the correct finish of said bolt to attach the coil bracket to the cylinder head on a 1970 Mustang Boss 302. Also, was the bracket attached to the head before or after the engine was painted?
The coil bracket was Zinc Phosphate–coated prior to being installed on the engine. The backside of the bracket would show minimal Corporate Blue overspray. The coil bracket was then painted on the engine, so the bolts were also painted Corporate Blue. The typical bolts used were 7/16-inch place bolts finished in Zinc Dichromate S36. I have included a few pictures for reference.
1971-1973 Taillight Bezels
I have a ’73 Mustang question. I was told I have 1971 taillight assemblies in my ’73 convertible. Are ’73 taillight assemblies different than 1971-1972? I’m sure you will know the difference.
Little Rock, Arkansas
I believe the difference is in the blackout trim around the lens itself. The ’73 Mustang is not blacked out like the ’71-’72. If you remove the black paint, you will be concours correct for 1973. I will include a picture for reference.
We have a 1971 Boss 351 Mustang. We show the car in MCA trailered concours class. Recently we were told we had an incorrect ’72-’73–style front valance on the car rather than the correct 1971 valance. Please inform us of the difference. Thanks.
The front valance was changed in 1972 to accommodate the change in the front grille support from two vertical braces to a single vertical brace. This required a center hole to be stamped between the original ’71 holes in the ’71-style valance. The ’72-style valance was serviced by Ford parts and service division for all ’71-’73 Mustangs, starting in the mid-1970s. If your car got a N.O.S. front valance after 1975, you probably got the later service part with the extra stamped hole in the middle. I have included three pictures for reference.