2.8 V6 to LT1 swap
#1
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
2.8 V6 to LT1 swap
Hey guys. I've been lurking here for the past three years and never needed to create an account. (You boys (and girls?) are fantastic, and usually have already run into the problem I'm currently having.)
Here's my issue. I've got an '84 Berlinetta that I'm dropping a LT1/460LE into. Problem is, I had the LC1 2.8 V6, and the mounts for the LT1 aren't lining up. Do I need to drill new holes? Get different mounts?
The main problem is with the driver's side clamshell that mounts on the k-member (cradle?). None of the different holes on my k-member match up to it. Got any advice, or has anybody else done a 2.8 to 350 swap?
Any help would be appreciated.
There's a long history to this car, and if anybody wants to hear it, I'll give a full story, but here's some pictures of the swap, and of my restoration of the car so far.
Before:
After:
V6 Engine:
LT1 Before:
LT1 After: (it was fully rebuilt. Internals and all. I didn't just give it a paint job)
Here's my issue. I've got an '84 Berlinetta that I'm dropping a LT1/460LE into. Problem is, I had the LC1 2.8 V6, and the mounts for the LT1 aren't lining up. Do I need to drill new holes? Get different mounts?
The main problem is with the driver's side clamshell that mounts on the k-member (cradle?). None of the different holes on my k-member match up to it. Got any advice, or has anybody else done a 2.8 to 350 swap?
Any help would be appreciated.
There's a long history to this car, and if anybody wants to hear it, I'll give a full story, but here's some pictures of the swap, and of my restoration of the car so far.
Before:
After:
V6 Engine:
LT1 Before:
LT1 After: (it was fully rebuilt. Internals and all. I didn't just give it a paint job)
#2
Member
iTrader: (1)
Joined: Dec 2002
Posts: 287
Likes: 0
From: Poconos, Pa
Car: 1984 Firebird
Engine: LT1
Transmission: T5
Axle/Gears: 3.42's
Re: 2.8 V6 to LT1 swap
2 things. Did you replace the V6 mounts on the k member with V8 mounts? There should be 2 sets if holes, use the most forward ones. The other thing, the drivers side motor mount on the lt1 needs to be replaced with a normal sbc motor mount, using a set of holes right behind the stock mount. Needs to be slightly modded if running A/C. Good luck!
#3
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
2 things. Did you replace the V6 mounts on the k member with V8 mounts? There should be 2 sets if holes, use the most forward ones. The other thing, the drivers side motor mount on the lt1 needs to be replaced with a normal sbc motor mount, using a set of holes right behind the stock mount. Needs to be slightly modded if running A/C. Good luck!
I've heard I might need these: http://www.summitracing.com/parts/ADD-713111/?rtype=10 but I'm really hoping to avoid that. Any chance I can drill new holes for the clamshell?
#5
Member
iTrader: (1)
Joined: Dec 2002
Posts: 287
Likes: 0
From: Poconos, Pa
Car: 1984 Firebird
Engine: LT1
Transmission: T5
Axle/Gears: 3.42's
Re: 2.8 V6 to LT1 swap
You do not need the mounts that you posted. You just need a stock sbc motor side mount for the drivers side. If you're keeping ac, it needs to be slightly Modified.
- I was thinking passenger side, sorry. Make sure you have the V8 mounts on the k member.
- I was thinking passenger side, sorry. Make sure you have the V8 mounts on the k member.
Last edited by WhiteBlaze; 05-13-2012 at 09:25 AM.
#6
Supreme Member
iTrader: (6)
Joined: Aug 2009
Posts: 3,670
Likes: 3
From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 V6 to LT1 swap
No he does need to change the K member side of the motor mounts. He needs v8 mounts instead of the v6 mounts
#7
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Trending Topics
#8
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
Does anybody have a picture of exactly what I need? In a few minutes, I'll put some trousers on and go take a picture of the mounts I currently have, but does anyone have a picture of the mount I actually need?
#9
Supreme Member
iTrader: (6)
Joined: Aug 2009
Posts: 3,670
Likes: 3
From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 2.8 V6 to LT1 swap
It's the rubber peices that the motor actually sits on when you put it on the k member, the bolt oes threw it. Go to autozone and look up motor mounts for a 92 z28 v8 and you'll see them, they are only $20
#11
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
This is the driver's side. Orange mount attached to engine. Clamshell that goes on k member attached for reference.
And passenger side. Clamshell on engine, motor mount on k member.
Any help appreciated, and keep in mind that this is my first swap. Go easy on me.
Thanks.
#13
Member
iTrader: (1)
Joined: Dec 2002
Posts: 287
Likes: 0
From: Poconos, Pa
Car: 1984 Firebird
Engine: LT1
Transmission: T5
Axle/Gears: 3.42's
Re: 2.8 V6 to LT1 swap
Get the normal f body engine side mounts. They will mount to the lt1 as normal, and allow normal install just like a normal small block. I'm by my car, I'll try to get a photo if its visible.
#15
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
#16
Member
iTrader: (1)
Joined: Dec 2002
Posts: 287
Likes: 0
From: Poconos, Pa
Car: 1984 Firebird
Engine: LT1
Transmission: T5
Axle/Gears: 3.42's
Re: 2.8 V6 to LT1 swap
From what I was told when I did my swap, it NEEDS to be from an f body. Worse case, check the classifies, that's how I got mine. Mine was a 2.8 a while back as well. If you're keeping A/C, the passenger side needs to be slightly modified.
#17
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
People keep saying that. I want/need A/C. So what needs to be modified? Just to bend in the frame somewhere?
#19
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
Hey boys. Me again. Got the engine in today, but the mounts aren't lining up as easily as expected. Is it possible I put the clamshells on the wrong sides?
#21
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
Erm. By about an inch on both sides. I'll try to get pictures in a couple minutes once I wash the grime and tranny fluid off of me.
#23
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
Alright, boys. I'm going to be very embarrassed to admit this, but here goes:
I had the passenger side mount in the wrong holes, and upside down.
Engine's in. I'm gonna take a quick shower (I accidentally got drenched in turpentine and can feel my brain melting) and then go pop the transmission into place.
I had the passenger side mount in the wrong holes, and upside down.
Engine's in. I'm gonna take a quick shower (I accidentally got drenched in turpentine and can feel my brain melting) and then go pop the transmission into place.
#25
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
Aye. Now the only thing I need to do is swap my fuel tank for an iroc one with the in-tank pump. Is there anything I should know while doing this?
#29
Thread Starter
Member
Joined: May 2012
Posts: 118
Likes: 0
From: South Jersey
Car: 1984 Berlinetta Camaro
Engine: '97 LT1
Transmission: T56
Axle/Gears: 3.23
Re: 2.8 V6 to LT1 swap
I did, but I couldn't really understand most of it. Is there a picture anywhere of what plugs can be removed?
Also, I have two separate questions.
One, since I'm switching my carbureted fuel tank for an in-tank pump fuel tank, I'm going to need to plug in the new tank. There's a wire going to the old tank that has two prongs on it. The IROC tank has three prongs. Does anyone know what I need to do to get the new tank wired up?
And two, what are C210, C220, and C230 plugs and where do they go? Do I need them?
Thanks guys.
Also, I have two separate questions.
One, since I'm switching my carbureted fuel tank for an in-tank pump fuel tank, I'm going to need to plug in the new tank. There's a wire going to the old tank that has two prongs on it. The IROC tank has three prongs. Does anyone know what I need to do to get the new tank wired up?
And two, what are C210, C220, and C230 plugs and where do they go? Do I need them?
Thanks guys.
#31
Senior Member
iTrader: (3)
Joined: Aug 2008
Posts: 706
Likes: 0
From: Dixon, IL
Car: 91 RS
Engine: LTwon
Transmission: T-56
Axle/Gears: Both
Re: 2.8 V6 to LT1 swap
Fuel pump wasn't all bad, just time consuming getting it out if you've never done it. I got a Walbro 255lph and it came with the direct plug in harness.
But as for wiring, not my department. Lol
But as for wiring, not my department. Lol
Thread
Thread Starter
Forum
Replies
Last Post