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</v:background></xml><![endif]--><div class=WordSection1><p class=MsoNormal>We have been having a fun discussion regards SBF stamped date codes, the one up on the front D side of the engine at deck height location. During rebuilds, these generally get milled off during a decking operation. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In my shop I have a number of small blocks in various states of apartness and accessibility. So a day or so ago, I went out to find date codes and stampings. Here are my numbers and what they mean regards date the blocks were machined for assembly later. Oh, I see that does not seem to resonate with what others think the date code means: there are those who believe the stamped date code is the day that the entire engine was assembled. Something I may need to sort out in my head, but I don’t think so. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 1. A 260 with casting number C30E-6015B and cast date code of 3E3. Stamped number on the pad is 3E9W which translates to 1963, May 9<sup>th</sup>, and whatever “W” means. We are all still investigating what the last, if any, letter means. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 2. A 302 with casting number of C90E-6015-G and a cast date of . Stamped date is 0A10 A. This one is different in that the first date code is a”0” and there is a letter “A” at the end, but spaced apart from the others. I am guessing that the “0” is for 1970 which would translate to a machined date of 1970, February 10<sup>th</sup>. Some say the “A” would be first shift. I am no <o:p></o:p></p><p class=MsoNormal>longer sure about this. There is another stamped number at the back of the block in the bell housing area: 0A200459. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 3. This is an old 289 5 bolt bell housing motor I put together in the 60’s. But the block was used and the date code is milled off. And it is in a position where I cannot get to the casting number and date of casting. I will see if I can hoist it up to take a look.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 4. This is my 5.0l turbo motor that set the Sunbeam speed record in 2010. This was a used block that had been assembled by DSS and I purchased it from a drag racer in Ohio who beat the dickens out of it. The deck had been milled and the stamped number is gone. If I can get to it I will check the casting number and date. This was a roller cam block as well. And I wil check to see if it has a bell housing area stamped number. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 5. This is a Mexican cast block, “Hecho en Mexico” in the lifter valley. I have to drag it out where I can see the casting and date codes on the lower block area. The stamped date code is 0K27 which translates to 1970, Sept 27<sup>th</sup>. I discounted the letter “I” being used so I think I counted on my fingers correctly but I am an old fart so Sept could be off. As with the other 302 block mentioned above there is a stamped number at the bell housing area: 178256<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 6. This is the current motor in the Land Speed Race car. It started life as an OEM 260 block. It has not been decked or bored. And since it is still in the car with the starter in place, the casting and date there are not visible. But, the stamped date is 3B2 which translates to 1963, Feb 2<sup>nd</sup>. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Block number 7. This is the OEM block as arrived from Rootes way back when. Of course it is still in the car and as we all pretty much know, the casting and date code is virtually impossible to get at and well so is the stamped date with the oil filter etc all being in the way. I will be removing enough hardware to get to the stamped date this week because I need to rebuild the remote oil filter hoses to shorten them. And remove the steering shaft that has the u-joints on it. The upper end of that shaft had some stiff joints (kinda like my left knee, lol), and I need to repack it with some heat resistant goop. When I get all that removed, I will get the OEM block date stamp info. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So, what does it all mean? I have no freaking idea but it is interesting! Especially those date stamps with extra letters which are undefined so far. Some think it might be an quality inspector tag, but, I think it is tied to a special order. Or industrial motor. Or? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>More to come when I can get at the remainder of the casting numbers. I plan on trying my best to understand ALL of the numbers that appear on the blocks and maybe heads as well. The heads that were on the Mexican block have an aluminum tag, which would have been at the firewall end of the head giving part number, and some other info. No other head has this tag. I also have a pair of open chamber Cleveland heads, bare, that I will toss into the mix. And byt eh way, if any of you want those or any of the other items mentioned above, lemme know. Maybe we can deal. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>mayf<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>_________________________<br>drmayf<br>Worlds Fastest Sunbeam, period.<br>204.913 mph flying mile average speed<br>210.779 mph exit (not top) speed<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>