[psychobilly]

Hi guys, nice site you got here, seems like the place I can find some info I've been hunting. A good friend is restoring a 69 camaro that his father purchased in 1972. Anyway the engine, tranny and ring gear (4.10's) all have a heart stamped on them. Any clue what that is? Anything significant about it, he has a spare tranny that does not have the heart so it has him wondering what it is.