Ever wonder what size motor you have? If so, your not the only one. To the inexperienced enthusiast all small sixes look identical, however there are minor differences which can be easily spotted if you know what to look for. In this article we'll cover a majority of the differences, for engines produced in the USA, even though you only need to know three to identify the engine size.

While Australian and/or Argentina built motors are similar to their US counterparts, they have...​
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