82 Corvette LS1/T56 install

Twin_Turbo

Der Maulwurf
Joined
Mar 5, 2008
Messages
7,579
I swapped a 2K4 GTO LS1 w/ T56 into an 82 C3. The install went pretty smooth, the only hickups were that for the GTO accy drive and low mount alt you need to notch the drivers side motor mount or you have to remove the alu support bracket on the back of the alt. I purposely left that in place so the alt doesn't flex and results in belt issues.

The exhaust are some reworked chinese stainless 4th gen F body headers, collectors opened up to 3"-> 2.75" via a little narrower merge style.

The GTO T56 needs a new shifter, the rear offset unit can not be used. Also, the shift cup on the shifter rod is wrong, it has an offset to the rear. You need an F body shift cup. The other issue is the GTO throwout bearing, it uses a hard line with a small funky quick disconnect. Easiest is wapping for a normal throwout and a remote bleeder kit.

For the fans, I wired it all up for 2 fans but am only using 1. This triggers a check engine light, you have to either gronud or complete the switching side of the circuit by inserting a relay.

I'm setting it up for an LS7 cartridge MAF in a 4" tube so the maf tables will need some tweaking.

Pics of the install:

Fabricating air intake, a brake cooling type hose will supply cold air to the filter when all is done.

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Stands out like a sore thumb so I coated it with some nice texture finish stuff, looks a bit like the oem plastics now

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NOTE!! the water pump is drilled for a stock water temp sender, I figured this was a convenient location for it. Also, the rad hose has a small fabricated conenction [piece with a T-ed off fitting in it, I used it to hook up the steam line from the engine. Do not block off the steam line on these. This engine is set up with a remote oil filter mount that I also modified to hold the oil pressure and temp senders.

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cartridge maf

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older pics of install:

cags removed, erverse lockout blocked off, I removed the plug later and hooked up the lockout. It's too easy to catch R when going to 5

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header clearance is OK

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I added ehat sleeves to the spark plug wires, also heat shielding around cables and heater hoses. EGR stuff is all blocked off

The hot water valve was removed, I installed a 4 port one from the GTO the engine came out off. It constantly bypasses the water in the system instead of blocking the route. I mounted it low on the frame, under the heater box.

notched crossmember

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tranny mount

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wix filter/regulator.

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the outside port is the feed, the center the return, contrary of many pics on the internet. This is WRONG!

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It runs also.... throttle response will be better when I have the MAF tables set up for the 100mm tube & cartridge maf combo.

[ame]http://www.youtube.com/watch?v=xTsEDPYrVKo[/ame]
 
Marck Marck Marck .... now why would you waste your time dropping that into a T-top when you could have dropped it into a convertible?
 
I know, but the prob is, shipping + taxes and other BS quickly adds about 6000 and I am looking to buy a big LSx for the TA.
 
Where does the shift lever come up in the tranny tunnel? Did you have to do any modification to the tunnel to get that big lump up in place? If I can find one, I'd love to put a T56 in my 77 at some point...

Beautiful work, as always!
 
Where does the shift lever come up in the tranny tunnel? Did you have to do any modification to the tunnel to get that big lump up in place? If I can find one, I'd love to put a T56 in my 77 at some point...

Beautiful work, as always!


In the wrong spot, I am going to have to modify that. no hammering was needed. Plenty of clearance and it's a tighter package than the ZF6 (S6-40)
 
I worked on a ZF 5-6? on a '91 ZR1 for a friend....talk about a monster....

sold the old one for some bux too, to a chick mechanic up north for her vette....

been a while....

think the damn thing was in a motor home or something...WTF??

:search:
 
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