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Cadillac Forum: 5.0 and 5.7

This forum is to discuss the newer, small block Cadillac engines.

  1. 1987 Brougham 5.0 vs. 1991 Lincoln Town Car 4.6

    If you compare a 1991 Lincoln Town Car with a 4.6L to a 1987 Brougham with a 5.0L, would the 5.0 Brougham feel underpowered? Any input is appreciated. óJohn

    Started by hillbillywood‎, 10-11-08 07:22 PM
    • Replies: 12
    • Views: 5,305
    10-20-08, 07:58 AM Go to last post
  2. signs of transmission failure?

    i was wondering what kind of noise do autotransmissions particularly 200r4's make when theyre going bad. im hoping the trans isnt going bad im aiming for it to be something on the engine...

    Started by seth‎, 06-02-08 08:31 PM
    • Replies: 1
    • Views: 3,472
    09-26-08, 09:28 AM Go to last post
  3. Has anyone here built up a 91 Chevy 350?

    I read some of the other threads, but I would like to know if anybody has followed through with a Cadillac/Chevy non-LT1 350 build up. I'd like to beef up my 91's 350 and was wondering where I...

    Started by Wheelman322‎, 01-18-08 08:38 PM
    • Replies: 12
    • Views: 2,937
    09-14-08, 02:30 PM Go to last post
  4. Trouble Starting...

    I have a 2000 Escalade with 169,000 miles on it. Runs great until it rains. Then I have problems with it starting. It turns over, starts but dies. After letting it sit for 2-3 hours, it starts...

    Started by 8yroldLacTrk‎, 08-20-08 09:02 PM
    • Replies: 3
    • Views: 2,061
    09-02-08, 01:47 PM Go to last post
  5. Mystery Vacuum hose

    Hey guys. I'm not mechanically inclined by any means other than knowing how to change oil, coolant, trans fluid, etc. But i took some time the other day to get familiar with my beloved l05. After...

    Started by arivera‎, 08-19-08 10:45 PM
    • Replies: 3
    • Views: 2,322
    08-25-08, 08:51 PM Go to last post
  6. Question Pulstar spark plugs

    Has anyone tried the Pulstar spark plugs in the 305 Olds engine? They look fairly promising, but I know mucho chiquito about automotive engineering on both the drawing board & practical ends. Also,...

    Started by Warren_R‎, 08-23-08 02:37 AM
    • Replies: 3
    • Views: 2,058
    08-24-08, 08:44 AM Go to last post
  7. Please tell me the fuse location

    I have a 1986 Brougham 307 and 1996 Fleetwood 5.7 My 307 gets terrible mileage as you described. Please tell me the fuse you changed. Thanks

    Started by stick85251‎, 08-12-08 06:08 AM
    • Replies: 1
    • Views: 1,965
    08-17-08, 02:05 AM Go to last post
  8. Thinking of 96 Fleetwood

    Hey guys, Caddy owner for a few years, on my second one (a 99 deville which has been a phenomenal car- but it has 165k miles on it-but still runs like a rolex). I encountered a 96 Fleetwood...

    Started by soccer_eldorado‎, 06-13-08 03:18 PM
    • Replies: 4
    • Views: 1,312
    07-10-08, 01:48 PM Go to last post
  9. Question about the TBI 305/350.

    Why do the TBI 305 and 350's always crank over for an extended amount of time before they fire up? If you compare a L05 and LT1, the LT1 will fire up in a second, and you've gotta crank the TBI...

    Started by I~LUV~Caddys8792‎, 06-16-08 11:15 PM
    • Replies: 2
    • Views: 2,482
    06-17-08, 07:29 PM Go to last post
  10. Question K&N air filters/ opinions invited

    Has anyone here tried the K&N air filters on a 305CID/carbureted engine? Their website suggests using one *might* add horsepower, assuming engine to be in good operating condition. Before...

    Started by Warren_R‎, 05-04-08 06:33 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 17,966
    06-17-08, 04:56 PM Go to last post
  11. 79 Seville - weird problem?? PCV Line.

    I have a T connection on the vacuum line from the throttle body to the PCV valve. Sorry engine 5.7 EFI gas. When I blank off this connection with a plug, and then run the car the engine races when...

    Started by geruk‎, 06-04-08 10:13 PM
    • Replies: 4
    • Views: 2,256
    06-13-08, 01:54 PM Go to last post
  12. 79 Seville 5.7 EFI Cal Emissions Equipment.

    I read somewhere in this thread I think, someone bypassed all the emissions sensing equipment and retimed the engine and all worked great. I can't find the thread, sorry if this is a duplicate. I...

    Started by geruk‎, 06-07-08 10:49 AM
    • Replies: 2
    • Views: 2,079
    06-12-08, 10:06 PM Go to last post
  13. LT1 to LO5

    I did some searching and reading up on this forum for the past two days but my searching skills are at par at best. Any help would be greatly appreciated. I have a RWD 95 cadillac bourgham...

    Started by umyeah‎, 05-23-08 12:25 PM
    • Replies: 9
    • Views: 3,311
    05-29-08, 06:30 PM Go to last post
  14. Tweaking the LT1 for better use on E85

    This is intended to be a technical discussion, not a pro/con of E85 or the political ramifications (you don't like it? See your favorite politician, they probably are the ones who signed the...

    Started by N0DIH‎, 02-22-08 06:56 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 18,228
    05-15-08, 12:13 PM Go to last post
  15. 2000 escalade

    i have a 2000 escalade with a 5.7 ltr vortec engine bone stock except lowered with 22 inch wheels i was thinking of bolting on a vortech supercharger with about 5 pounds of boost. i took this cadi to...

    Started by‎, 05-10-08 03:20 PM
    • Replies: 1
    • Views: 2,739
    05-12-08, 08:58 PM Go to last post
  16. Trouble code 149?

    I pulled the trouble codes on the '91 Brougham, it first shows 00, which I believe means no trouble, then it shows 149... What does that mean?

    Started by Faded Crest‎, 04-21-08 06:34 PM
    • Replies: 2
    • Views: 3,236
    05-03-08, 03:42 PM Go to last post
  17. 1990 Brougham

    I want to totally redo the 350 thats in it right now, but once i get everything new i dont think i want to run the throttle body again, if i wanna do carb can i still get all my electrical shit to...

    Started by 96BIG_BODY‎, 04-13-08 04:19 PM
    • Replies: 4
    • Views: 2,428
    04-26-08, 10:49 AM Go to last post
  18. Cost of a 5.7 rebuild.

    Hello all, I have a '90 Brougham with a 5.7L 350. The car has 190K on it, and the motor, though it runs fairly well, is showing some age. I am losing oil, a little through the RMS, which is...

    Started by caddeville89‎, 03-08-08 08:34 PM
    • Replies: 14
    • Views: 12,757
    04-25-08, 10:05 PM Go to last post
  19. 5.0 skip... Out of luck?

    Hello bretheren, Bought a 1991 Brougham D'Elegance from an old geyser who did nothing but drive and change the oil. At 119,950 miles, the spark plugs were ORIGINAL, as were the AC Delco Cap/Rotor...

    Started by Faded Crest‎, 04-18-08 08:31 AM
    • Replies: 4
    • Views: 2,014
    04-23-08, 10:58 PM Go to last post
  20. cooling fan

    Hi can any body tell me why my cooling fan on my 1993 cadillac fleetwood brougham only comes on when I turn my A/C on and only one fan spins the other one don,t spin

    Started by motor00‎, 04-22-08 06:57 PM
    • Replies: 1
    • Views: 1,869
    04-23-08, 04:59 PM Go to last post
  21. '91 Bro. 5.0 spak plug strategy???

    At around 7:00 tonight, I figured I'd change my spark plugs on the Brougham... NOT a job to start at dusk! I got the 4 drivers side with some acrobatics, but the passenger side looks horrible. ...

    Started by Faded Crest‎, 04-14-08 09:13 PM
    • Replies: 4
    • Views: 1,424
    04-16-08, 10:10 AM Go to last post
  22. Help with radiator leak

    ive got a 91 d'elegance. was driving the other day and a huge cloud of smoke comes from the radiator then dissapears. i pull over open the hood and theres about half a cup of radiator fluid over...

    Started by Technochef‎, 04-14-08 02:10 AM
    • Replies: 0
    • Views: 1,944
    04-14-08, 02:10 AM Go to last post
  23. High compression Small Block or LT1?

    Anyone have any experience making a very high compression LT1 or Small Block Chevy? I am talking 13-14:1 range.... Thinking of building an LT1 for E85.... Probably going to have to dome it for...

    Started by N0DIH‎, 03-08-08 01:44 PM
    • Replies: 3
    • Views: 3,521
    04-06-08, 11:18 PM Go to last post
  24. Did some performance mods, now she won't idle...

    I've got a '95 Fleetwood Brougham...LT1... So I've done some performance modifications to the car since I bought it. I got the car with 108,000 miles on it, and I just turned 224,000 on the...

    Started by cadillackid1959‎, 04-05-08 11:30 AM
    • Replies: 5
    • Views: 4,389
    04-06-08, 05:33 PM Go to last post
  25. anouther chevy 305 prblem

    i just got an 86 c-10 truck with a 305 it seams to run good the guages say it has oil pressure and shows its not overheating. well i changed the oil it was just old and dirty and i went to put new...

    Started by seth‎, 02-03-08 04:35 PM
    • Replies: 8
    • Views: 3,298
    03-20-08, 05:53 PM Go to last post

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