ac delco stg1 remanufacterd motor
- Thread starter nickygn
- Start date
the GM short blocks that were sold as replacements were SG blocks after 88------but they were not remanfactured they were new blocks with crank, pistons, rods--------there were some GM remanufactured engines (long blocks) but if they are like the ones that I have seen they are poorly done------ie not turbo pistons/not turbo cam/not turbo head gaskets-----do you have a part # for the one that you have-------
I had a feeling that was what you were looking at--------if you go to the GM parts book you will see that even as far back as 88 only the short block was available for the VIN 7 engine-----there was a long block available early on but it was only for special warranty claims and was not listed in the parts catalogue and it had a different part # -------I bought one of those engines from someplace in texas about a year ago-----can't remember exactly where or from whom but the guy said he had several------I was going to buy them all but bought only one to see exactly what it was since it did not seem to show up in the GM system-------it was bored 40 over-----did not have turbo pistons----cannot remember if the crank was correct but memory says it was not right either------did not have a turbo cam-----did not have turbo head gaskets------did not have the correct head bolts for a turbo motor and did not have sps bolts in the rods etc.---------something really strange about those motors but i can say one thing for sure-------if you expect it to be a replacement for a hi performance GN prepare to be dissapointed---------i do remember that i called to see if he had any that were bored perhaps only 20 or 30 over and he did not have any--------i obviously did not buy any more and it is still sitting on the shelf--------buyer beware.................RC
turbofabricator
Well-Known Member
- Joined
- Mar 7, 2004
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.
perhaps ------but at least the short blocks had 3.800 bores, turbo pistons and new unturned crank
here is a pic of the real thing-------brand new VIN7 complete engine--------GM part # 966640 can be seen printed on the crate---------even came with oil in the sump------- original black grooved PF 47 all you needed was a crank pulley and accesory bracket--------fine one of these and its worth all the money------................RC
