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Old 04-16-2012, 12:19 AM   #1
BadBlackVett
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LT1 install in an '84

Ok guys and gals. I'm kicking this off in this section until this gets shut down or moved.

I purchased/traded for a 1984 Corvette Coupe last fall. It came with the original crossfire/700r4 combo and an LT1/4L60 combo on the side. I'm starting my build and will be posting pics and asking and answering questions as I go along. I will post pics as I have time or if there is a question.

I have already taken the aluminum heads and intake in to be reworked. The shop I am using is Performance Clinic in Beavercreek, OH. The heads received a mild porting and basic machining to square and true the head surface. The seals were replaced and spring pockets machined to accept the springs in the LT4 Hot Cam package.

Two weeks ago I took the block to the shop for machining and to get the bottom end installed with new pistons. I ordered the hot cam kit from Pace performance and it arrived promptly so I will be dropping it off at the machine shop to be installed.

I ordered a Prothane complete bushing kit for the vette and will be installing soon. Saturday I transferred the title and the car is registered so it's time to get working, starting with the suspension. Hopefully I can get it done before the engine is finished and then on to the install.

I have been tossing around the idea of having the trans rebuilt. The previous owner said he installed a Transgo kit. I'm concerned that the motor will make power in the 350-400 hp range and I don't want the trans to trash itself the first trip or first few trips out. Any ideas?

The computer has been reprogrammed and I have a complete wriring harness. I plan to install the complete harness and computer, removing the old one. The LCD guages are gone so I am putting in aftemarket gauges, either the Sport Comp kit or a Summit digital kit. I'm going to slowly work out any bugs and report on my findings.

Pics will get posting later in the day and work will be slow but steady. I have school to finish up for the year and a full time job, not to mention a long list of honey-do's. I intend to have it running late spring/early summer.

Thanks ahead of time for any help.

Last edited by BadBlackVett; 04-24-2012 at 03:46 PM.
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Old 04-16-2012, 05:49 AM   #2
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Sounds like a fun project, I'll be watching your progress. Be sure to post pics as you go.
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Old 04-16-2012, 03:31 PM   #3
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You will love the poly bushings. Just be sure to get an extra tub of grease ( regular grease will not work nor will lithium, has to be for poly. ) and grease the shit out of them on install. Dont underestimate the time they will take to install. If you plan on cleaning/polishing all the aluminum parts while it is apart it will take about three long hard days. The toughest part is the front upper arms. Did mine and it makes a world of difference in the corners and twisties. Also might get a sway bar hit for the front and back as they arent included in the kit. I can guarantee if the original stuff is still in there it will be very sloppy and you will already have it apart. Good luck with it and get to posing them pics !!
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Old 04-17-2012, 01:54 PM   #4
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Thanks guys, the pics are coming tonight just waiting on the upload to photobucket. After resizing I'll post to the forum.

I'm looking forward to the poly bushings. I installed a set on a '71 Nova and it made a world of difference. I can only guess what it will do for the Vette. Bad part is I've never driven this or any Vette and I'm quite anxious to get it on the road.

The motor is still at the machine shop and I'll have pics as soon as I get it back.
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Old 04-17-2012, 02:14 PM   #5
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Here they are


Engine bay



Interior
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Old 04-17-2012, 02:17 PM   #6
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Parts



Too lazy to remove the plastic.
Some of the machining can be seen. They didn't go overboard just did enough to match the gasket and the intake.
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Old 04-17-2012, 02:19 PM   #7
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Old 04-17-2012, 02:21 PM   #8
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Misc parts on the shelf



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Old 04-17-2012, 02:22 PM   #9
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The 4L60 is on the left.

Factory harness unmolested and the computer.
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Old 04-17-2012, 02:24 PM   #10
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This is the best part right now. Once the motor arrives, parts will be coming off of the shelve getting cleaned and mounted.

Drool over this. LT-4 Hot Cam Kit
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Old 04-17-2012, 03:38 PM   #11
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The vette with stock rubber bushings will handle better than yor 71 nova with poly. Put poly in the vette and 70 in a 35 mph posted corner is no problem. You will love it. By the looks of the car, parts, and machine work so far you will be grinning ear to ear and giggling like a school girl whenever you drive it! Looking good - keep us posted
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Old 04-17-2012, 05:55 PM   #12
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I can't wait to see this finished and follow along with it. I'm very interested in the dash and what you do.

Great looking Vette and can't wait to see it done.
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Old 04-17-2012, 06:52 PM   #13
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Summit sells a digital gauge package that is about 13" wide, less than $300 and works off of standard GM sending units. I am going to look into fitting it in the empty space and pray it works.

This one......



or this one.
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Old 04-18-2012, 03:34 AM   #14
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Is the stock '84 throttle body fuel pump capable of supplying the 45PSI that you'll need for the LT1 injectors?

Don't forget to change the fuel filter before you fire anything up!

Steven
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If energy and enthusiasm were a substitute for experience and expertise, then I could hire my 12 year old to do this job.

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Old 04-18-2012, 06:56 AM   #15
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hey do you still have the crossfire thermostat housing?
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