V8 all 1st design: short spark plug bracket mounted to passenger side intake manifold, except... see moreV8 all 1st design: short spark plug bracket mounted to passenger side intake manifold, except 421 C.I. Super Duty (Dated 1-Q-63)
-original 1/2 x 14 N.P.T.F.-, with warning lights Note: Requires a double 56 series female... see more-original 1/2 x 14 N.P.T.F.-, with warning lights Note: Requires a double 56 series female terminal connection