any1 have any experience good or bad with one.
ac delco 12364681 longblock .everything i come up with searching the # says turbo replacement block
Many years ago I went through three of the VIN7 replacement short blocks from GM. One spun a bearing on start up, the second one had crooked head bolt holes, the third one I pulled it apart to check everything out and found a rod bearing installed spun. Fixed everything correctly and that engine ran for years at 10.7-11.2. Check EVERYTHING carefully prior to install.
The last one the guy sold on ebay was a 60 over block...the one now has no gm rebuild plate on it