my grand marquis is running horrible and I am looking to increase the performance out of the motor. Are there any things I can do on a small budget? I have been told to swap the heads, so how much would that cost
 |
-
owner of 84 grand marquis
71,700 original miles
2 800 watt kenwood 12\'s
1000 watt kenwood amp -
Welcome to the site...I'm sure people will chime in soon to help you out, but it might help to list what kind of problems you're having as far as why/how it is running bad, etc. Just a bit of advice. Welcome!
-Jeff-My CarDomain Page
2002 P74
Arizona Beige
20% Tints All Around
Tinted Tailights
Clear Corners
Sound System
Leather Interior
-
Welcome!
Well goddamn, I got an 84 GM too! Prob one of my most worthwhile mods were exhaust, and the carb swap, as well as an MSD 6AL ignition.
Justin (phayzer5) in order to coax the maximum out of his stock mystery '84 shortblock, we used an edelbrock 600 4bbl, performer RPM intake, ported E7 heads, and a cam to get pretty good performance...
Yes, convert to carb. CFI sucks.
Also, gears and a good transmission make a difference too.
like the old timers used to say "All the power in the world wont do you any good if you cant put it to the ground"
Well said.
GMGT1983 Grand Marquis 2Dr Sedan "Mercules"
Tremec TKO conversion, hydraulic clutch, HURST equipped!
Comment
-
welcome to gmn!
try and get the car to run decent with stock parts before modifying the engine........the cars do have potential for more power, but you dont wanna go throwing parts at a car and it still doesent run right
scott
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
please be patient, rebuilding an empire!
Comment
-
how much $$ do you have to work with, and can you do your own work????
Then we can give more accurate advice. Bottom line is, theres not much you can do unless you get fat paychecks. there are lots of affordable mods to do, dont get me wrong. but the ones that make you go fast cost the most
Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
sigpic
85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereoComment
-
Yes, define "not running right", and what work has been done on it to attempt to correct the problem.
And welcome!86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
i got alot of fat paychecks into the lincoln :slug:
1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
2006 Lincoln Town Car Signature. Stock for now
1989 Ford F-250 4x4 much much more to come, sefi converted so far.
1986 Toyota pickup with LSC wheels and 225/60/16 tires.
2008 Hyundai Elantra future Revcon toad
1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)
please be patient, rebuilding an empire!
Comment
-
I've got a lot more skinny ones into mine. $100 car with probably ~$1500 into it in the last 2 months.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
-
Here is one idea.
Swap in a lower milage Explorer of Mountaineer 5.0L from the wreckers. Sell the EFI parts off the Explorer motor and convert to carburation. If you decide to keep the stock Explorer camshaft, you could run an Edelbrock performer and an Edelbrock 600 carb. Get a distributor with a steel gear for the hydraulic roller cam like the Summit HEI. Run take-off Mustang headers and H pipe. To keep it simple, you could run a stock replacement mechanical fuel pump. Your CFI motor should have an eccentric you can use, even though it doesn't have a mechanical fuel pump. On many CFI timing covers, you can finish cutting the hole where the mechanical fuel pump goes. You could replace the in-tank pump with a length of hose like Phayzer did. Lokar makes a kit to hook up the AODs Throttle Valve to a carburator.
Should not cost all that much and if the junkyard motor is fresh, should last a long time.
Just one way to do it.
Tom :broccoli:Comment
-
the engine misses and it feels like the engine is losing power
I'am hoping to stay under 2000 dollars.
And I can do all of the work on my ownowner of 84 grand marquis
71,700 original miles
2 800 watt kenwood 12\'s
1000 watt kenwood ampComment
-
you could build a junkyard motor for 2 grand, and have a REALLY quick car...
Tom just stated the best way to do so...1983 Grand Marquis 2Dr Sedan "Mercules"
Tremec TKO conversion, hydraulic clutch, HURST equipped!
Comment
Comment