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Old 02-18-2007, 03:18 AM
TN2Lane TN2Lane is offline
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Default Re: olds 455 Rocket engine ID

38M190455 decodes to
3 - Olds
8 - 1968
M - Lansing
190455 - 190455th car down the line

The valve covers are GM Performance Parts units and retail for $300 a set new last time I checked.

Beyond that you'll have to open it up to see what you have. That looks like the big car (88/98) air cleaner, so assuming it started life on this motor I'd expect small valves, unless someone has upgraded them.
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