[427TJ]

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Here is a pic of power brake booser and master cylinder. In 67 did the ss option show on cowl tag?

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I think early SS 350s did not have the 4P code on the cowl tag denoting SS 350. Later, the 4P code (350/295), 4N (396/325), 4K (396/375) and 4L (Z/28) was stamped on the trim tag.

My 03C LOS '67 RS/SS 4N Camaro has 2M denoting the Th-400 and the Camaro Research Group confirmed that the Powerglide transmission code was used to indicate the Th-400 in 4N Camaros. Not sure if NOR 4N Camaros got that code.

The SS 350 was available from the beginning of the model year while the other three (the two 396s and the Z) came out "mid-year" in November and December.

Someone please correct me if I am wrong.