Offshoreonly.com - 502 or 454

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ctadams21

03-24-2005 08:24 PM

502 or 454

What's the easiest way to determine whether a big block is a 454 or a 502 from the outside? Assuming of course that you can't read it on the flame arrestor or run the serial number.

topfuel

03-24-2005 08:31 PM

Re: 502 or 454

The easiest and best way is by the casting number on the back of the block just above the bellhousing.

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