Preparing my Fiero for an engine swap (Page 4/23)
CJB118 JUL 04, 04:35 PM
I am doing an L67 swap into our 88, started it last year by buying an 03 GTP wreck for $500.00, stripped it of all usable parts and sold the excess pieces in CL. I recommend buying a whole car, so along with the drivetrain you will have enough wire and most connectors to build the swap harness. L67 series II motors are extremely durable, good for around 250,000 miles with normal operation and maintenance. Mine already had 100,000 miles, but I plan to tear it down to a short block, then clean and reassemble it with all new gaskets, seals, wiring and sensors. In that state it should be ready to run for a long time. I really do not plan to put another 150,000 miles on the car after the swap, so why go to extremes?
The L67 cars are going for cheap these days, many available on CL for less than $1000, just find one that was not abused. Private sales are best, you can meet the owner, and get an idea of how the car was treated.

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1988 Pontiac Fiero Formula, Yellow, original. (CJB #118)
1977 Pontiac Le Mans Can-Am W72, original, unrestored.
1977 Pontiac Grand LeMans
2003 Pontiac Grand Prix GTP L67/MN7 (Parts Car)
2001 Pontiac Grand Prix GTP L67/MN7 (DD)

longjonsilver JUL 04, 05:05 PM
Yeah, i agree that private sales are the best, and looking at junkyard prices it is also cheaper to buy the whole car. $500US is a good deal, i find that many owners are asking $1000C - $1500C for series 2 SC cars. There is really no reason to go without a supercharger as the cars with them don't seem to be any more expensive than cars without, altho they might sell faster to guys like us

i just put in the rally gages and the 120 MPH speedo in my car, but don't have pics as there are odds and ends that need to be cleaned up first. The gages work fine (gotta put in the later model oil sender, and the tach is set up for a 6 cylinder not the duke), but the lights don't work, except for the right turn signal. i did the test drive before i found out that i had not let off the hand brake

jon

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I'm the original owner of a white ' 84 2M4 purchased Dec 10, 1983 from Pontiac. Always garaged, no rust, 4-wheel drifts are fun! 3800 SC swap to come!

[This message has been edited by longjonsilver (edited 07-16-2018).]

CJB118 JUL 04, 10:42 PM
I want that exact scoop setup to go over my L67 Install. Any chance you have a part number on yours? If I can find one I would buy it...
longjonsilver JUL 05, 07:03 AM
Thanks for the compliment. The front vent (scoop) is one that i made out of fibreglass myself copying the one in the rear to cover the hole left from removing my BBQ vent on the 84.



This rear vent is a front scoop from an 80's (?) Mustang. i hate how Mustang makes all these fake scoops. This one looked like it was functional but there was no hole in the hood other than the ones for the bolts, which i used to mount it to the 84. It is functional now heh heh. i had to fibreglass in the sides of the BBQ vent so that the Mustang scoop would work.

The front vent that i made really helps keep the front down at speed. When original my 84 really was squirrly at speed on the freeway- like anything over 50mph. i put in tire chains to help, then i moved the battery to the front and it helped, maybe anything over 55mph. i then put on the aero nose rather than the bumper pads, and that helped maybe to 60mph, but the biggest help has been the front vent which allows me to drive 80mph before the front gets squirrly. In addition i have overheating problems as a result of funky rad fan function and a 35 year old radiator. The natural thermosyphon of the front vent allows me much better cooling, and i have managed to limp by here in Montreal without a new radiator. i have ordered a new 3 row rad from Champion that should fix the problem up front and the 3800 rad fan sender will fix the rad fan problem.

i sized the front vent by cutting out the max section above the rad that i could without cutting structural members. Then i made a foam mold a little larger than the cutout on the sides and also large enuf in the rear so you can't see the cutout from the rear of the vent, unless you put your head on the hood.

Before i made the front vent, i looked at many pics on this forum, and some in person as well, and never found anything that i thot i could do myself that looked any good. i even considered a Subaru scoop as a vent. This was the result.

i have considered using a Mustang fake scoop for the rear brakes as an intake for the air to replace the stock Fiero intake, but they are too big to fit, so i will have to consider plan B

jon

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I'm the original owner of a white ' 84 2M4 purchased Dec 10, 1983 from Pontiac. Always garaged, no rust, 4-wheel drifts are fun! 3800 SC swap to come!

[This message has been edited by longjonsilver (edited 07-05-2018).]

longjonsilver JUL 16, 10:12 AM
i completed the install of my rally gages and 120mph speedo. i used the 84 instrument housing because it had the circuit board that i KNEW was good and the others that i have are somehow beat up. i also used the faceplate from my 84 because it is also in the best shape and because the idiot lites are in the same place as the wiring. i thot about swapping in my cellulose idiot lite covering into the GT faceplate but it wasn't in as good a shape as that of my 84. In addition the faceplate of the GT has a gasket around the speedo and tach that restricts light coming in. i want light to come in and light up my gages!



i have three gage pods because when i brot my Fiero to Canada the speedo didn't work, so i pulled one from the scrap yard and installed just the speedo into my gage pod. i had a mix of metric and imperial units on my gages. Now i just have metric units - it really isnt a 120MPH speedo, its a 180KM/H speedo

i went to the scrap yard today and pulled a taillite assembly for the nochie passanger side. i don't need one - i need the drivers side - but i want to use it as an experiment to put in reflective tape and paint the outside with translucent paint to give a more modern custom look. i got the idea here: http://www.fiero.nl/forum/Forum1/HTML/097646.html

jon

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I'm the original owner of a white ' 84 2M4 purchased Dec 10, 1983 from Pontiac. Always garaged, no rust, 4-wheel drifts are fun! 3800 SC swap to come!

longjonsilver JUL 17, 09:10 AM
Here is another good thread w lotsa pics:

http://www.fiero.nl/forum/F...2/HTML/132743-3.html

jon
ignorant prodigy JUL 17, 06:19 PM

quote
Originally posted by longjonsilver:

Here is another good thread w lotsa pics:

http://www.fiero.nl/forum/F...2/HTML/132743-3.html

jon



oh man.. this guy is a complete scrub

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87 Fiero GT- 98 L67 swap - (SOLD)
88 Fiero Formula- L67 swap in progress
T-Top 672 of 1252

longjonsilver AUG 10, 08:39 AM
i pulled some door pockets from the GT that i got the gages from but i wondered what to do with them as i want my manual handles, not power windows. Soooo, while i was working on my console and had it pulled apart i got the idea of putting them on the sides of the console. It was a hard job getting the little nuts on the bolts. i used a file to clear away the carpet from the head of the bolt. Worked better than anything else. i've got more space now for stuff!



Anybody know how to keep them from hanging open all the time?

jon

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I'm the original owner of a white ' 84 2M4 purchased Dec 10, 1983 from Pontiac. Always garaged, no rust, 4-wheel drifts are fun! 3800 SC swap to come!

[This message has been edited by longjonsilver (edited 08-27-2018).]

AustinH AUG 10, 09:19 AM
I have a complete parts list for my 3800sc series II swap, and my second build as well here, along with diagrams and instructions.

http://www.fiero.nl/forum/Forum2/HTML/139530.html

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Austin
1988 GT 3800SC Series II 3.4" Pulley
Fiero How-To Videos at https://www.youtube.com/use...4?sub_confirmation=1
Facebook page at https://www.facebook.com/FieroAustin/
Build thread - http://www.fiero.nl/forum/Forum2/HTML/139530.html

[This message has been edited by AustinH (edited 01-24-2021).]

BadNewsBrendan AUG 13, 03:31 PM
ignorant prodigy your "What a scrub" comment made me chuckle.

Currently working on a similar swap with a series 2 from an 02 Regal with about 100,000 miles on it. Doing all the gaskets other than the head gaskets cause I am cheap and hopefully that doesn't bite me in the butt later. Unfortunately forgot to get the axles from the guy so will have to figure that out when I get to that point. Currently trying to find a shop that will machine down and balance a fly wheel for me since I am keeping my 4 speed.

Tons of great info on here, just need to find the time to get to reading!