| Northstar Performance and Technical Discussion Performance discussions relating to the Northstar System (intake, exhaust, cam, etc.). | Cadillac Forums: Hey BBOB (and others), was the LT1 ever considered 
05-16-05, 06:56 PM
|  | Expired eMail Address  | | Join Date: Jan 2004 Age: 36 | | | Hey BBOB (and others), was the LT1 ever considered
as an engine for the Deville/Seville/Eldorado back in 1994 to replace the 4.9? I figure GM could of adapted it for FWD, it would have the power to still compete against the german and japanese luxury cruisers (BMW/MercB/Lexus) and cost a whole lot less to adapt then designing a new engine.. Just curious and if it was considered, what was the deciding factor(s).
Thx |
05-16-05, 10:25 PM
|  | Cadillac Owners Connoisseur Cadillac(s): 1981 CoupeDeville, 2 1990 Eldorados, 1994ETC ,1992STS | | Join Date: Feb 2004 Location: Nerk,Ohio Age: 29 | | | Re: Hey BBOB (and others), was the LT1 ever considered
I find it doubtful, the lt1 is just too heavy when compared to the 4.x/northstar engines, not to mention fuel efficiency and power/wt. ratio. |
05-17-05, 12:40 AM
|  | Cadillac Owners Fanatic Cadillac(s): 1996 Cadillac Seville STS (167k) | | Join Date: May 2005 Location: Western NY | | | Re: Hey BBOB (and others), was the LT1 ever considered
I'd have to agree with the weight factor, and the fuel efficiency. After all Cadillac was just getting off from the 80's with their smaller more fuel efficient V8's (307). I think they tried to make the Northstars have similar power of the LT1 but with better gas mileage. my two cents. |
05-17-05, 03:56 AM
|  | Banned Cadillac(s): 1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII | | Join Date: Aug 2003 Location: Albuquerque, NM Age: 22 | | | Re: Hey BBOB (and others), was the LT1 ever considered
Luxury buyers wanted a sophisticated and powerful DOHC V8 so they got one. |
05-17-05, 01:22 PM
| | Expired eMail Address | | Join Date: Jan 2004 Age: 36 | | | Re: Hey BBOB (and others), was the LT1 ever considered
Logical answers, I didnt consider fuel milage.. Thanks. |
05-20-05, 02:24 AM
|  | Cadillac Owners Master Cadillac(s): 94 Fleetwood Brougham | | Join Date: Aug 2004 Location: Rockford, IL Age: 42 | | | Re: Hey BBOB (and others), was the LT1 ever considered
I doubt it. The 4L60E would never be reliable with the torque of an LT1. The gears are not rated for that amount of torque, no matter what you do to the trans. The plantary gearset won't survive through all of GM's reliability testing for that car. Maybe the L99 would, not not the LT1. |
05-20-05, 04:44 AM
| | Banned Cadillac(s): 1995 ETC, 75 Deville, Cad500 powered 73 Apollo, 94 Mark VIII | | Join Date: Aug 2003 Location: Albuquerque, NM Age: 22 | | | Re: Hey BBOB (and others), was the LT1 ever considered
The 4L60E is the tranny in LT1 Fleetwood Broughams, it's in the one sitting in your driveway right now probably. L meaning longitudinally mounted IE RWD. The 4T60E might not be able to handle an LT1, but the northstar cars used a 4T80E anyway. |
05-22-05, 01:14 AM
|  | I'm a Cadillac Fanatic! | | Join Date: Dec 2002 Location: Fort Lauderdale, Florida Age: 45 | | | Re: Hey BBOB (and others), was the LT1 ever considered
Quote: |
Originally Posted by 95Concours as an engine for the Deville/Seville/Eldorado back in 1994 to replace the 4.9? I figure GM could of adapted it for FWD, it would have the power to still compete against the german and japanese luxury cruisers (BMW/MercB/Lexus) and cost a whole lot less to adapt then designing a new engine.. Just curious and if it was considered, what was the deciding factor(s).
Thx | No, it was never really considered. First off, it is too long and does not package in the TFWD arrangement. The general feeling at the time that a pushrod engine did not provide the sophistication for a luxury car like that. The all aluminum Northstar saved mass, had full capability for the upcoming tighter emission standards and with the DOHC and 4 valves per cylinder would have the high output needed while being smaller displacement for improved fuel economy. | | Cadillac Discussion Tools | | | 
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