Are there many differences between a 49 327 and a 53 327

Posted by kleroy On 2015/5/2 20:54:15

Well, they delivered my 49 Limo yesterday and after fighting the beast off the trailer she is now safely ensconsed in my friends pole building. Spent a few hours today unpacking boxes of parts and pieces and looking things over and am now having a severe case of "what the heck did I do" syndrome!! My best guess is that it does not have its original engine. I knew the head said "Thunderbolt" on it and it appears to have a casting date of 10-28-53 on it, i just thought someone had replaced the head at one time. But, on further examination, the engine number is stamped on a boss on the rear left corner of the engine block. Doing some homework on this site, that is not where they had the numbers on the 49 blocks. Also the engine number does not mesh with the numbers listed in the tables on the site. the engine number does match the number listed on the old title I got which was issued in Feb. 1969, so if the engine was swapped it was done a long time ago. There also appears to be a casting date on the block below the starter which indicates 12-18-53. My question is, are there any major differences between the 49 series engine and a 1953 model. This engine is a 327 CU inch engine so at least that is correct. Any input would be greatly appreciated, Thank you!
Kevin