I just picked up a 73 Firebird from a friend that has had it sitting in storage for years. He picked it up around 5 years ago or so with the intention to making a Trans Am clone as he really wanted a 73 TA. Well, a few years ago he picked up a 73 SD 455 TA and has since almost forgotten about the poor Firebird. I just got it home a few hours ago and i've been really trying to identify what exactly i have and what all it needs. Here is what i know so far:
73 Firebird Esprit.
Originally came with a 350/2 bbl, but now has a 455/4bbl. There is a 455 cast into the block on the drivers side front close to the freeze plug.
Has a 495106 intake. Can't remember the year that number showed, but it showed was same intake on the 350/400/455
Has a 490143 drivers side exhaust manifold. I'm showing its from a 71 or so 350/400?
Motor has a HEI distributer with Accel coil on top
Heads are 4X. Looking through the oil fill, it "looks" like i can see screw in rocker studs
Car has a Muncie 4spd with Vertigate shifter. From looking at how the shift linkage bolts to the tranny side cover, it looks to be a 63-68 Muncie. Evidently a M20 or M21(i'm not sure how to tell which)
Looks to be a Q-jet carb. Fuel inlet points to the passenger fender.
The motor runs, but feels like its missing on a cyl or two. It revs kinda slow and its smoking out the exhaust. The amount of smoke seems to change every time i crank it. Sometimes not much, sometimes quite a bit. Car has dual exhaust(looks like 2" if that). Right side normally smokes more than the left side. Motor sounds pretty quiet with a small tick near the right side valve cover. Its not exhaust. Its very mild though. Reving the motor produces smoke from the drivers side valve cover vent. I do not see a PCV valve.
At the moment, the only gauge that seems to work is the water temp. The tach does not move, nor does the oil pressure. I don't think the fuel guage reads right(shows over full). Not really paid attention to the alt gauge. I did notice there are two wires on the back of the alt with fuses. One of the plastic fuse holders is broke and there is no fuse. Could this be why no gauges work?
The car had A/C and everything looks to be there but the compressor and the brackets for the compressor
I did notice the dash looks like the ones i've seen on T/A's(brushed alum look?).
The car has a rear window defroster(never seen this on one of these). Dunno if it works at the moment
Someone installed a moon roof in the top of the car. I do not know if it leaks at the moment.
The car has a dual scoop ram-air hood, i think its a Formula hood? Drivers side rear corner has a chunk missing and there are a few of the little "gills" at the back of the hood that are missing. There are a few of them in the glove box so maybe i can get those fixed?
I do know the rear is a 10-bolt. There is a tag under one bolt that says to only use limited slip differential lube, so i assume it has a limited slip diff. I don't see any other tags that might point to the rear gear ratio. Anyway to tell with out pulling the cover and counting teeth?
The body on the car is straight. Its UGLY! The vinyl top is mostly gone.
Front seats came from some other car. I like them, but the blue clashes with everything else in the car.
My favorite part are the air shocks in the rear! lol
The front seems to sit kinda high. Surprised since the car has a bigger motor.
Thats about all i know at the moment. I would really like to get it running better. Not really sure where to start. The motor seems to be missing and it does not get better revving it up. I hate to spend a bunch of $$$ for a carb(or spend time/$$$ rebuilding a carb that is trash) only to find the motor has issues. I would not mind pulling the heads for valve job/seals, but would hate to find there is a lot of wear on the cyl walls. Any suggestions?
Edited by Birdoprey, 12 April 2017 - 06:14 PM.