09-13-2011, 09:59 PM
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CC Member
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Join Date: Jul 2003
Cobra Make, Engine: Unique Motorcars 289 USRRC, 1964 289 stroked to 331, toploader
Posts: 1,144
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You are looking at two different sets of numbers. There are date codes like the 9F26 and engineering numbers like the other two you posted.
The 9F26 decodes to June 26, 1969.
The engineering numbers have the decade, followed by the year and then letter codes for the line and type. For example the C7AE-B rods decode to C = 1960's, 7 = 1967, A = Full sized cars, and E = engineering dept., engine in this case. The B is a revision indicator as they refined the part.
The block will likely have both types of codes cast into it. No difference in casting numbers for boats.
Hope this helps...
__________________
Paul
Unique Motorcars 289 USRRC
1964 289 5-bolt block
Toploader and 3.31 rear
Last edited by PDUB; 09-13-2011 at 10:02 PM..
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