| RE:[1992 LT1/MN6] My Engine is dying... |
Subject: RE:[1992 LT1/MN6] My Engine is dying... by bogus on 2007/11/23 6:19:06 you're gonna make me prove it. So be it. This link will take you to the 1993 Camaro RPO Codes. http://www.chevy-camaro.com/chevy-cam ... -codes-year.asp?year=1993 This shows the history of all Impala SS's, but you need to go down to find the specifics on the 1994 and newer SS's. They reference the "Baby LT1"... It was called the L99. It was 265 ci. http://www.goissca.org/imp_hist.htm And this clears up the usage of the LT1 RPO code. http://www.speakeasy.org/~miket/9c1_info.htm In short, there were 5 engines that were based on the architecture: The L99 was the 265 ci version, used as the base motor in Caprices. The LT1 was a 350 ci, with iron heads and block and was used in the Impala SS, the Caprice as the optional engine, the Buick Roadmaster and the Cadillac Sedan de Ville. It was also used in the 9C1 police cars. It had 260 hp. The LT1, as used in the F-Body was an aluminum head, iron block with 2 bolt mains. 275hp on up, depending on options. I think they topped at 327hp for the Firehawk Firebird. The LT1 as used in the Corvette was the same as above, but with 4 bolt mains. 300hp. Then comes the LT4, same as above, but with different intake and heads. 330hp. This is an ad for the Impala SS:  I can't find any visable proof, but I almost bought a Firebird back in 1995... and the option list showed the engine... LT1. That's where the rumours started... with GM itself.  To summarize, the RPO code is a rather nebulous thing. GM can assign the same RPO code to several SIMILAR things, and because of the car requested the RPO get that item. It's a game of association. The B-Body requests one type of LT1, the F-Body another and the Y-Body, yet another. |
