Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

What needs to be done to put a 454 in my sport coupe?

Thread Tools
 
Search this Thread
 
Old Feb 10, 2012 | 09:50 AM
  #1  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
What needs to be done to put a 454 in my sport coupe?

A friend has a 454 long block that he will sell to me for 300 bucks. It was running when It was pulled, but I will rebuild it anyway. So the big question is, will it fit without major modification? I've seen multiple threads where people have said that you need a cage and subframe connectors, plus stiffer springs. This won't be much of an issue anyway if I'm getting the engine for cheap anyway. So what do you think? Is it worth it or not? Thanks
Reply
Old Feb 10, 2012 | 09:53 AM
  #2  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

Originally Posted by mgg4591
A friend has a 454 long block that he will sell to me for 300 bucks. It was running when It was pulled, but I will rebuild it anyway. So the big question is, will it fit without major modification? I've seen multiple threads where people have said that you need a cage and subframe connectors, plus stiffer springs. This won't be much of an issue anyway if I'm getting the engine for cheap anyway. So what do you think? Is it worth it or not? Thanks
Also consider you're probably going to have to remove some frame for headers/exhaust to run back depending on your transmission housing.
Reply
Old Feb 10, 2012 | 10:09 AM
  #3  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

I'm going with a t56 for the transmission. Do you think I can keep the a/c or will that have to go? I wasn't considering this swap before, but for the price of the motor I can't resist. Do you think it's worth it considering the price of the motor, and everything that needs to be done to make it work?
Reply
Old Feb 10, 2012 | 10:12 AM
  #4  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

If its a turn key motor and doesn't need a lot of work, its a good deal. I don't know much about the t56 tranny because I have never had one. I know you will need shorty style headers or custom headers. I say go for it, But i'm no professional.
Reply
Old Feb 10, 2012 | 12:18 PM
  #5  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

I did more research and it seems I will need special headers, a bigger aluminum radiator and a larger e fan, as well as subframe connectors and stiffer springs.
Reply
Old Feb 10, 2012 | 12:19 PM
  #6  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

An some modification to the hood of course.
Reply
Old Feb 10, 2012 | 12:58 PM
  #7  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

Originally Posted by mgg4591
I did more research and it seems I will need special headers, a bigger aluminum radiator and a larger e fan, as well as subframe connectors and stiffer springs.
Definately get a aluminum radiator, and get a high cfm electric fan, maybe 2 fans.
Reply
Old Feb 10, 2012 | 01:29 PM
  #8  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

If the casting numbers match up and the engine is what he says it is, I think I'm gonna go for it. It's gonna take some work, but it will awesome for power, plus it won't be like putting in a 350 like everyone else seems to do. It will be something different.
Reply
Old Feb 10, 2012 | 01:40 PM
  #9  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

Ehhh.. I would say 305, 350, 400, 427, and 454 are the most popular blocks. But a 454 definately leads in torque and power. The problem with big blocks is that they take that green stuff out of you're wallet alot more efficiently. Bigger block = bigger parts.
Reply
Old Feb 10, 2012 | 01:43 PM
  #10  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

Originally Posted by thebuffalo
Ehhh.. I would say 305, 350, 400, 427, and 454 are the most popular blocks. But a 454 definately leads in torque and power. The problem with big blocks is that they take that green stuff out of you're wallet alot more efficiently. Bigger block = bigger parts.
The good thing is the car is already torn down and I'm in the process of putting it back together. Going with 4.11s in the rear, with the t56 as I said earlier. Also going with a tubular k member and a-arms, as well as koni shocks. I was going to use eibach pro springs, but I will need to find a much former pair for the front instead.
Reply
Old Feb 10, 2012 | 01:56 PM
  #11  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

Koni is a good company, 4.11 will be good if you have a manual.. I have a 4.10 and I'm hearing its not good with a semi auto (t400), Good luck with the build.
Reply
Old Feb 11, 2012 | 12:53 AM
  #12  
82CAMAROBBC's Avatar
Junior Member
15 Year Member
iTrader: (1)
 
Joined: Apr 2007
Posts: 81
Likes: 3
From: Butler,Ky
Car: 1982 Camaro
Engine: 454
Transmission: TH350
Axle/Gears: 410
Re: What needs to be done to put a 454 in my sport coupe?

Go for it... I am currently using a 350 turbo but want the t56.

At min you will need sub frame connectors. Headers are available but not cheap. I used the hooker swap headers and did not have much problem. The collector did hit the sub frame connectors that I used (SSM). I modified the headers by shorting about 2 inches at the collector. I have true 3" dual exhaust search for my post for pics and parts list.
Reply
Old Feb 11, 2012 | 07:34 AM
  #13  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

I found the headers on summit for 500.00. Not bad considering custom ones would be much more. I also found an aluminum 31x19 radiator for about. 250.00.
Do you think I will need to change the front springs or can I get away with the stock ones? I believe a cast iron 350 weighs about 550 and a 454 is like 700. So if I do the a/c delete, tubular a-arms and k member, and get a fiberglass hood, shouldn't it be fine with stock springs?
Reply
Old Feb 11, 2012 | 07:59 AM
  #14  
Edwardgp's Avatar
Supreme Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: What needs to be done to put a 454 in my sport coupe?

I have the stiffer springs and SFC on mine and the tower strut and wonder bar are next.
Reply
Old Feb 11, 2012 | 09:39 AM
  #15  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

What springs are you using? Also, I talked to him today a he said the engine has been sitting outside for six months, but it has been wrapped up. Regardless, even if it needs machine work, 300.00 seems good even for a 454 core.

I'm going tonight to take a look at it and possibly buy it. I'll keep everyone posted.
Reply
Old Feb 11, 2012 | 09:44 AM
  #16  
Edwardgp's Avatar
Supreme Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: What needs to be done to put a 454 in my sport coupe?

Oh my I think there as stiff as you can get maybe 1500lb's anyway it lifted the car three inches with the BB installed I am not worried about cornering so it depends on how you are going to drive.
Reply
Old Feb 11, 2012 | 06:58 PM
  #17  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

Originally Posted by Edwardgp
I have the stiffer springs and SFC on mine and the tower strut and wonder bar are next.
Well the intake number is 22503087.

I couldn't see the casting number. All that comes back online is an olds 442 under that number.
Reply
Old Feb 11, 2012 | 08:06 PM
  #18  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

So here are some pics. Can anyone tell me what engine this is by looking at it? I couldn't get the casting number off of it due to how its sitting. Here are some pics:




Reply
Old Feb 12, 2012 | 05:14 PM
  #19  
watajob's Avatar
Supreme Member
iTrader: (29)
 
Joined: Sep 1999
Posts: 1,410
Likes: 2
From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: What needs to be done to put a 454 in my sport coupe?

What needs to be done to put a 454 in my sport coupe?








Reply
Old Feb 12, 2012 | 05:50 PM
  #20  
Edwardgp's Avatar
Supreme Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: What needs to be done to put a 454 in my sport coupe?

A picture is worth a thousand words.
Reply
Old Feb 13, 2012 | 08:27 AM
  #21  
thebuffalo's Avatar
Member
 
Joined: Jan 2010
Posts: 239
Likes: 0
From: Seminole, FL
Car: 88 trans am
Engine: 350sb
Transmission: t400
Axle/Gears: 7.5/2.73
Re: What needs to be done to put a 454 in my sport coupe?

Originally Posted by watajob








I just lol'd hard at work, the chainsaw got me.
Reply
Old Feb 13, 2012 | 05:20 PM
  #22  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I think you are looking at an Oldsmobile engine. It's probably a 307, maybe a 350, not a 455 (for sure not a 454).

I'd say this is a pass. Putting a small Olds into a 3rd gen is about as much pain for as little gain as you can get.
Reply
Old Feb 13, 2012 | 05:59 PM
  #23  
LsxMatt's Avatar
Thread Starter
Senior Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Jul 2011
Posts: 695
Likes: 73
From: New York
Car: 86 Sport Coupe
Engine: 5.3 LM7
Transmission: T56
Axle/Gears: 4th gen 3.42 posi
Re: What needs to be done to put a 454 in my sport coupe?

I found a guy selling a...... Drum roll please........ 305. Its still in the car running with under 100,000 miles, and he only wants 300.00. I know 305s are terrible, yaddy yadda yada... But I just want a cheap motor that will get this car on the road. Its in an 88 monte so it is high output at least. Comes with a 650cfm edlebrock carb and aluminum intake. I am going build a big block on the side, then when it's done I can swap it in. It's gonna be paired up with a t56 and 4.11s, so it should be TOO terrible.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MustangBeater20
TBI
11
Oct 29, 2022 09:20 PM
sreZ28
Engine Swap
4
Aug 14, 2015 07:48 PM
Kaweh
TBI
3
Aug 9, 2015 02:54 PM
cRoe4
Transmissions and Drivetrain
3
Aug 7, 2015 08:46 PM




All times are GMT -5. The time now is 10:57 AM.