David, I know the oil cooler issue still pops up occasionally, but as Pastel Blue posted they just were not production installed on the 71 429 Mustang. After doing some more research I do believe that the engineers were going to equip the 71 Mustang SCJ models with the engine oil cooler. Had to dig waaay back in some very old 71 parts info. The actual oil cooler kept the same 1969 part number for all 69-71 SCJ 428, 429, and Boss 429 applications. Back in early 1971 there were some D1ZZ (71 Mustang) inlet and outlet oil lines listed but were discontinued and replaced by the reinstated 70-71 DOOZ Torino lines. The D1ZZ block adapter replaced the DOOZ Torino part but for some reason was not discontinued and replaced with the reinstated Torino part like the lines were. Since the engineering number "D1ZF" was actually cast into the block adapter maybe they felt like it was to much trouble to change the mold. I really don't feel that a 4.30 geared SCJ Torino was spinning the engine that much harder than a 4.11 geared SCJ Mustang. I've driven both and each was very capable of opening up a can of Haul A$$ in a hurry! Lol At this point who knows what the engineers were thinking. Sometimes I believe they were smoking some of the same stuff the assembly line workers were enjoying.
The D1ZZ-6881-A adapter was eventually replaced by the D8AZ-6881-A which was used on the 73-78 460 Police Interceptor. No previous police cars were equipped with the oil cooler.
If you do find your old block adapter let me know.
The D1ZZ-6881-A adapter was eventually replaced by the D8AZ-6881-A which was used on the 73-78 460 Police Interceptor. No previous police cars were equipped with the oil cooler.
If you do find your old block adapter let me know.
