Why It Matters
The Boss 429 engine assembly is tracked separately from Ford FE big-block applications because the 1969 Boss 429 sources identify the NASCAR-homologation 429 as a distinct 385-series, semi-hemi-head Mustang package.
Also Known As
Boss 429 engine429-CID Cobra Jet HO V-8 assembly429 Boss engineBoss 429 V8 assembly
