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Old 09-08-2008, 01:44 PM   #1
HayesPerformance
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The 3.4 DOHC in the car.....

I thought I'd acually share some pic of my 3.4 DOHC installed IN the GP....
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1991 Grand Prix STE
3.4 DOHC
1 of 792 Produced
Extensive Mods Done

1991 Lumina Z34
3.4 DOHC
Getrag 284 5spd
1 of 30
Canadian Z34 Models Made with the Getrag 5spd Wahoooo!
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Old 11-28-2008, 07:13 PM   #2
GT40racer
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I like the MSD coilpacks and red sparkplug wires. Nice and neat looking install.
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Old 11-28-2008, 08:02 PM   #3
mrl390
 
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What strut tower brace are you using?
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Old 11-29-2008, 01:31 AM   #4
GTP091
 
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Did you leave the Alternator blower in or pull it out?? Still trying to figure out how you got a coolant reservoir in the fender and still be able to keep an eye on the level. I can see the filler cap in the pic; is it a stock tank from another car or did you fab something up??
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1991 Pontiac Grand Prix GTP / 3.4 DOHC

Port and Polish
FFP under Drive Pulley
FFP Poly Dogbone
True Cold Air Intake
MSD Coils
MSD Ignition Module - installed soon
Killed the Cat
170 Amp "Iceberg" Alternator
LED Markers
Battery In the Trunk...

Last edited by GTP091; 11-29-2008 at 01:33 AM.
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Old 11-29-2008, 12:51 PM   #5
HayesPerformance
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I left the alternator blower, but moved it over a bit.

I used the coolant reservoir from a Ford Aerostar, cut off the washer tank thats attached, pushed a hose (I think it was a 1/2") , into the tank through the one top hole (a heavy duty thick walled hose that will not kink) pushed it in till it was near the bottom, ran it up to the Rad.

The clear cap and hose adapter that the cap screws onto is taken from a old honda prelude, the best part is that they have a long flexable "coolant dipstick" that I also used to know how full it is. I had to add a second hole to the tank to utillize the remote fill using the aerostar tank.
You could use the entire coolant overflow tank, remote fill cap & dip stick from the prelude but I found the tank way too small, and the hose to the tank too short.

One other thing that you got to do with using the Aerostar coolant tank is adding a fitting to the top and runing a vent hose up the engine compartment where there is no dirt to OR drill a small vent hole in the clear honda adapter.
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1991 Grand Prix STE
3.4 DOHC
1 of 792 Produced
Extensive Mods Done

1991 Lumina Z34
3.4 DOHC
Getrag 284 5spd
1 of 30
Canadian Z34 Models Made with the Getrag 5spd Wahoooo!
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Old 12-01-2008, 09:01 AM   #6
cutlass supreme FE3
 
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wow that looks so so clean you can eat off from it.

i like the polished valve cover alot
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Old 12-01-2008, 12:33 PM   #7
55trucker
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I notice that you've deleted your EGR, and you've vented the port on the forward Cam Cover to atmosphere. Any benefit in doing so? Do like the polishing job on the cover, few hours spent doing that I guess? ..engine looks impressive.
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Old 12-02-2008, 01:05 AM   #8
HayesPerformance
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The Valve Cover I polished to a smooth finish and then had it triple chrome plated.
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1991 Grand Prix STE
3.4 DOHC
1 of 792 Produced
Extensive Mods Done

1991 Lumina Z34
3.4 DOHC
Getrag 284 5spd
1 of 30
Canadian Z34 Models Made with the Getrag 5spd Wahoooo!
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Old 01-05-2009, 11:00 PM   #9
tinindian95
 
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Your engine looks great. Did you move your coil packs up onto the right inner fender? Mine are located on the lower front part of the engine block near the starter. I had a 1990 GP SE with the 3.1 engine in it and they were down there also. I would like to have mine located where yours are now, what's involved in moving them?
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Old 01-06-2009, 11:05 AM   #10
HayesPerformance
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-removing & replacing the coolant overflow tank
-making a solid mounting bracket
-lengthing & shortning some of the wires to your ignition module
-make some custom length ignition wires to them
__________________
1991 Grand Prix STE
3.4 DOHC
1 of 792 Produced
Extensive Mods Done

1991 Lumina Z34
3.4 DOHC
Getrag 284 5spd
1 of 30
Canadian Z34 Models Made with the Getrag 5spd Wahoooo!
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