GM 290hp engine keep crossfire 82
Thread Starter
Cruising
Joined: Sep 2008
Posts: 14
Likes: 0
GM 290hp engine keep crossfire 82
Hello people my name is Nancy and I am new to this forum. I have an 82 corvette but the engine is very old and leaking everywhere. Heard that only 5 cylinders are running too. Anyways I want to buy the GM create engine and keep the crossfire injectors, but they are really old. Can some of you guys guide me and tell me what I need to do. I am a dummy lol. 
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Just so we're clear, you want to buy a GM crate engine, and install your stock Crossfire injection system and manifold onto the new engine right?
That's fine, it's basically a bolt on affair. Just make sure that the crate engine you are buying doesn't have the newer intake bolt pattern and that it still uses heads with a perimeter style valve cover bolt pattern.
You'll want to replace a few sensors and clean it all up...maybe have the TBs rebuilt...but it shouldn't be a hard job.
That's fine, it's basically a bolt on affair. Just make sure that the crate engine you are buying doesn't have the newer intake bolt pattern and that it still uses heads with a perimeter style valve cover bolt pattern.
You'll want to replace a few sensors and clean it all up...maybe have the TBs rebuilt...but it shouldn't be a hard job.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Why not just have your Crossfire engine rebuilt? It won't cost any more than buying and installing a "new" crate engine and it will keep the engine original. Just install stock replacement parts (and rebuild the throttle bodies) That's my suggestion. Good luck. 
Burning Brakes
Joined: Oct 2007
Posts: 1,177
Likes: 4
From: Alcolu S.C.
Or up grade for more ponies.
Thread Starter
Cruising
Joined: Sep 2008
Posts: 14
Likes: 0
Wow thanks for the fast replies guys!!
That is correct Durango Boy I was looking at the GM Goodwrench 1970-85 350 Engine and really wanted to buy it with the package deal you know the one that comes with the Edelbrock Performer Air Gap Intake Manifold and the Edelbrock Performer 600 cfm Carburetor with adapter plate but then I remembered that the car is fuel injected. Like I said I am a dummy and dont know much about cars but I know that it is hard to change over from FI to carb. I have been reading alot of post about doing that and it seems complicated the whole thing about the computer and all. I dont even know how to get started but I want to learn this things and want to do all the work myself. With help though I figure if I can work on motorcycles I can learn to work on cars.
7T1Vette that sounds like a great idea also the thing is I THINK i will have to spend alot of time on it and really want to do things myself rather than having it done and paying labor.
I have been looking at this one
http://www.jegs.com/p/GM+Performance/752506/10002/-1
with the componet package 2 but like I said it comes with a carb will this easier
That is correct Durango Boy I was looking at the GM Goodwrench 1970-85 350 Engine and really wanted to buy it with the package deal you know the one that comes with the Edelbrock Performer Air Gap Intake Manifold and the Edelbrock Performer 600 cfm Carburetor with adapter plate but then I remembered that the car is fuel injected. Like I said I am a dummy and dont know much about cars but I know that it is hard to change over from FI to carb. I have been reading alot of post about doing that and it seems complicated the whole thing about the computer and all. I dont even know how to get started but I want to learn this things and want to do all the work myself. With help though I figure if I can work on motorcycles I can learn to work on cars.
7T1Vette that sounds like a great idea also the thing is I THINK i will have to spend alot of time on it and really want to do things myself rather than having it done and paying labor.
I have been looking at this one
http://www.jegs.com/p/GM+Performance/752506/10002/-1
with the componet package 2 but like I said it comes with a carb will this easier
Last edited by shoeitime; Sep 30, 2008 at 07:51 PM. Reason: added info
Le Mans Master
Joined: Apr 2001
Posts: 5,000
Likes: 1
From: Minneapolis, Mn USA
Its very easy to convert over to carb. Many have done it. More powre for easy money -relatively.
A new distributor with Vac advance and a fuel pressure regulator to bring the pressure down to carb pressures.
You may also need to set-up a 700R4 torque converter clutch lockup feature as your existing one will become disabled since theECM is no longer functional and going into closed loop. These kits are available which connect to your speedo cable and automatically lock up the TCC at a certain speed. I know Redwing Vette has used this with success.
Also consider an exhaust upgrade to compliment your new found power.
Modding -its a disease.
B...
A new distributor with Vac advance and a fuel pressure regulator to bring the pressure down to carb pressures.
You may also need to set-up a 700R4 torque converter clutch lockup feature as your existing one will become disabled since theECM is no longer functional and going into closed loop. These kits are available which connect to your speedo cable and automatically lock up the TCC at a certain speed. I know Redwing Vette has used this with success.
Also consider an exhaust upgrade to compliment your new found power.
Modding -its a disease.
B...
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
For the cost of the crate engine, you can have someone pull yours out, rebuild it to original specs, and re-install it. If you are considering buying a crate engine (which you still have to remove and re-install an engine anyway), why not have someone else do it and save the grief.
Race Director
Joined: Jan 2003
Posts: 15,176
Likes: 88
From: State of Confusion
http://forums.corvetteforum.com/show....php?t=2097023
Once weak-kneed, his '82 is now a successful bracket-racer, running quicker than any stock/rebuilt CFI would, with no decrease in mileage.
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Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Where in the country are you located?
If all you want is a cruiser, you can buy the Targetmaster or 250HP crate or whatever GM is calling it now and use your stock intake. I like FI myself and IMHO if you swap to a carb on this car you are going backwards.
If you want more oomph, you could use a TPI engine from a C4. The intake will bolt right on. Many options, need a better idea of what you are expecting and what your budget is.
If all you want is a cruiser, you can buy the Targetmaster or 250HP crate or whatever GM is calling it now and use your stock intake. I like FI myself and IMHO if you swap to a carb on this car you are going backwards.
If you want more oomph, you could use a TPI engine from a C4. The intake will bolt right on. Many options, need a better idea of what you are expecting and what your budget is.
