After sending my block off and having it mic'ed, magnafluxed, ect.... The block came back in top condition....no scarred cylinder walls no cracks. Cylinder walls mic'ed .060 over and crank was turned down .010 previously before the block was mine. But thats now the big deal i'm excited about. Since the block was clean...i could read the casting numbers. Block is 3999289 plus the numbers saying the date. I24 73 I brought this number to Dimmicks machine shop and they ran the numbers on there computer. Now i was originally told that my 454 came out of a 85 3/4 suburban (truck motor) According to the casting numbers....its a Hi performance block out of a 73 passenger car. What could this motor be out of?
Gotta be a post production block. A special order, not delivered in the car. A crate motor if you will. Aside from a few Cadilacs and the big boat Buicks, I don't know of any 1973 passenger cars with big blocks. The Chevelles, Camaros, and ElCos should have all been smallblocks by this time, with the 350 as an expensive engine option. Those would be all the cars I can think of that would house the 454 at that point. Are you sure it is not a 396? 427 maybe?
OK I went to the machine shop with my block's numbers and thats what they came up with. Its only a 2 bolt main. I got the machine shop to run the numbers when the guy i bought the engine from started having a little descretion in the year and make of the block. I originally bought it thinking it was out of a 85 3/4 ton suburban. The next time i talked to him he told me it was out of a 1 ton dually. The guy at the machine shop told me that if it was a truck motor...it would have "truck" written on the block on the lip above the transmition mount holes and if it was a Passenger car motor...it would have "Pass" written on the lip. It has "Pass" written in several places on the block Also it has "Hi Perf" under the timing chain and by the oil filter Does any of this ring a bell? The numbers are 3999289 http://www.mortec.com/bbc.htm I also found that number on that web page what now SandT?
No. the Nova was reduced to I6s. The Chevelle, just an upgraded Nova, had 305s and 350s, but I still feel there were no biggies in Chevys post 72. I may be wrong. I'll look in an old shop manual at work Monday (If I remember) and see what, if any, Chevys ran 454s, 427s, or 396s.
No. the Nova was reduced to I6s. The Chevelle, just an upgraded Nova, had 305s and 350s, but I still feel there were no biggies in Chevys post 72. I may be wrong. I'll look in an old shop manual at work Monday (If I remember) and see what, if any, Chevys ran 454s, 427s, or 396s.[/b][/quote] a 6? bah... wimpy. Glad I got a good ole 350 in mine. On the way to work today a Civic wanted to mix it up.... Probably coulda beat him, but wasnt the time or place.
ahh. wait a second.... The guy I bought the Nova from said the original engine was a 327... Isn't that a 8 cylinder? He added the ZZ4 a couple years back, but deff. said it was 327 before that...
