Arash Posted July 27, 2005 Report Share Posted July 27, 2005 Dear all members, Sorry I'm posting so late. As some members might remember, I got a severe overheating after replacing my engine and it turned out that the used engine I bought had a big crack in its upper block area which was filled by special cement that opened up when the engine tempreture reached 125 centigrade. Now I'm returning the engine and want to buy another used engine. Is this ok if I put an SLS engine? Is it also ok if I get a 95,96,97 STS engine and install it? or it has to be the exact 94 STS engine. Can you guys please clarify this for me. I can't find any used Northstar in British Columbia, Canada as this type of car is very rare here. Thanks in advance for all the responses. Link to comment Share on other sites More sharing options...
Scotty Posted July 27, 2005 Report Share Posted July 27, 2005 I am going to guess that you can only utilize a 95, due to the change that occurred in 96 with the OBD2.... Link to comment Share on other sites More sharing options...
CaddyChris Posted July 27, 2005 Report Share Posted July 27, 2005 you can put a 93 N* no problems at all...exactly the same. I put a 93 in my 94. As far as newer...I think Scotty is on the right track. Chris Christopher Petro 94 sts 67 coupe de Ville Link to comment Share on other sites More sharing options...
Ranger Posted July 27, 2005 Report Share Posted July 27, 2005 If your car is a '94, you can only use a '93 or '94. Also you cannot cross STS (LD8, VIN 9) with SLS (L37 VIN "Y"). Did I get that right? Anyway, you can't mix 'em. The STS & SLS have different final drive ratios and so the PCM's will differ as well. Link to comment Share on other sites More sharing options...
Poobah Posted July 28, 2005 Report Share Posted July 28, 2005 The problem with switching Northstar engines around is not that they won't bolt up, it's that the electronics are not necessarily compatible. For what it's worth, I found out my '94 Eldo has a '98 or later block but '94 heads, intake, etc. This came to light when I had the head gaskets replaced. My mechanic had trouble getting the correct front cover gasket. The shape of the front cover was changed in '98 to accommodate the newer Seville chassis. I'm guessing the block mounted sensors haven't changed much over the years while the top end sensors have. Bottom line is if you swap in an engine or engine components from another year, you need to do your homework and make sure the electronics will wring out. Happiness is owning a Cadillac with no codes. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.