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1969 Firebird L92 4l80 slow-build

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Old 01-13-2012, 07:23 AM
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Now you see why my thread has the correct name. Arm is better. Gall Bladder since removed. Mid-life crisis resolved.

Some work on car completed.


Subframe connectors welded in


Engine in for final time....I think. Wiring for motor being placed.


Old 01-13-2012, 07:32 AM
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That alternator is an ad244. Wiring harness has a four wide connector with only middle two positions wired.

M/C is 24mm mopar. Dual 8" booster. CPP prop valve. Being a redneck, I plumbed roll-control into rear brakes.
Old 01-13-2012, 09:38 AM
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Nice build...what oil pan did you end up with? The motor sits in there nicely with those s&p plates
Old 01-15-2012, 02:52 PM
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Used the autocraft pan.

For P/S pressure hose and Stainless Works Header issue, I got a 2005 monti carlo p/s hose and cut ends off. Plan is to get short section on hydraulic hose with striaght JIC male ends and flare JIC tube nut/sleeve on end of each hardline. Seems to have alittle better clearance to header. Have some heat shield on monti p/s hose and will use it as well.





Old 01-15-2012, 08:10 PM
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Man, your 'Bird is sweet as hell! I'm looking forward to watching this come together!

But when it comes to building a Firebird with an L92 slowly, I'm pretty sure I've got ya beat!!
Old 09-17-2012, 09:03 PM
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Wow, eight months since update. Sorry. My son went off to college this fall, so I may finish this project by winter....
Any ways, here is update.

PS/cooler/pump/hose done. M/C, Prop block, line lock plumbed and bled. Front drive done.


Radiator, trans cooler, PS cooler in and plumbed.
Old 09-17-2012, 09:11 PM
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ECU/TCU mounted. Starter wired. Spun the motor over and got 220-235 on compression test. Oil gauge read 40 psi while cranking for compression test. Comforting as I bought the used motor several years ago.


Mount in trunk for battery/starter solenoid/cut-off done.
Old 09-17-2012, 09:19 PM
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Should I move starter cable to interior of car? It is kinda thick to run through car interior. Seems well secured under car and is only hot for starting.


Old 09-17-2012, 09:23 PM
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Rick's tank is in and plumbed to motor. Cut access hole in trunk.


Old 09-17-2012, 09:33 PM
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I set aside last weekend to do the wiring harness. I guess I was fooling myself time wise. I ran out of beer as well. Gas pedal/brake pedal are at a nice height.




And I hope to make more progress soon....

Last edited by L92Firebird; 09-17-2012 at 09:42 PM.
Old 09-18-2012, 01:58 AM
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Very nice. Makes me think twice about selling my second gen thats been on hold forever :/
Old 07-23-2014, 09:27 AM
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Wow, long time since update! The car runs well. I have about 200 miles on it and need to go to tuner shortly. Redoing exhaust and driveline angle at the moment.







Old 07-23-2014, 12:00 PM
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What happened to the Mopar MC and the dual diaphragm booster?
Old 07-23-2014, 01:30 PM
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Did you make the Trans crossmember?
Old 07-23-2014, 06:43 PM
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Very nice, you should be proud.
Old 11-23-2014, 09:13 PM
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I believe we need some closure here. Car runs great. 431 rwhp. Drove to cruising the coast in October and the car performed flawlessly. Even the wife did some burnouts!







Last edited by L92Firebird; 11-25-2014 at 02:34 PM.
Old 11-24-2014, 05:39 PM
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What wheels did you go with, look pretty much what I am looking for.
Old 11-25-2014, 02:38 PM
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Formula43 RAD 14 wheels



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