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.

swapping in an older engine. hit a snag.

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Old Oct 22, 2012 | 06:35 PM
  #1  
RavageTheRoad's Avatar
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Joined: Oct 2012
Posts: 186
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From: Levittown/DelcoPA
Car: 1991 RS
Engine: L69?
Transmission: 700r4
swapping in an older engine. hit a snag.

How's it going, everyone? I've been lurking here for about a month since I picked up my 91 RS. It developed (probably already had) a rod knock after a few days of owning it, but I love the damn thing so i decided to keep her alive, which brings me to my question.

I am doing this swap on a budget, and after the local boneyard failed me, I was able to locate a 305 from an 86 el camino on craigslist. I believe it's an LG4. My question is, I want to keep the TBI, can i just bolt the intake/TBI setup from my old engine on to the "new" one, or is there more involved? I have everything bolted up, and it all fits where it should; I should be finishing up and firing her up tomorrow so I guess I'll update if anyone is interested. Should I expect it to work or should I just throw the carb back on?

Thanks in advance, this forum seems awesome and i will definitely be a frequent poster!

Edit: I will get some pics of the car up when I get them off my phone.

Last edited by RavageTheRoad; Oct 22, 2012 at 06:43 PM.
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Old Oct 22, 2012 | 07:20 PM
  #2  
Tinbender59's Avatar
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Joined: Dec 2010
Posts: 334
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From: Near Wichita Ks
Car: 1997 K1500 SS/SB
Engine: LT1 with TPI on top
Transmission: 4L60E/np241,
Axle/Gears: 3.73
Re: swapping in an older engine. hit a snag.

Originally Posted by RavageTheRoad
How's it going, everyone? I've been lurking here for about a month since I picked up my 91 RS. It developed (probably already had) a rod knock after a few days of owning it, but I love the damn thing so i decided to keep her alive, which brings me to my question.

I am doing this swap on a budget, and after the local boneyard failed me, I was able to locate a 305 from an 86 el camino on craigslist. I believe it's an LG4. My question is, I want to keep the TBI, can i just bolt the intake/TBI setup from my old engine on to the "new" one, or is there more involved? I have everything bolted up, and it all fits where it should; I should be finishing up and firing her up tomorrow so I guess I'll update if anyone is interested. Should I expect it to work or should I just throw the carb back on?

Thanks in advance, this forum seems awesome and i will definitely be a frequent poster!

Edit: I will get some pics of the car up when I get them off my phone.

it will work just fine, although the ecm would like a differant cam, but all in all it will work.
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Old Oct 22, 2012 | 07:21 PM
  #3  
Tinbender59's Avatar
Member
10 Year Member
 
Joined: Dec 2010
Posts: 334
Likes: 0
From: Near Wichita Ks
Car: 1997 K1500 SS/SB
Engine: LT1 with TPI on top
Transmission: 4L60E/np241,
Axle/Gears: 3.73
Re: swapping in an older engine. hit a snag.

by the way; nice save!!!
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Old Oct 22, 2012 | 07:37 PM
  #4  
RavageTheRoad's Avatar
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Joined: Oct 2012
Posts: 186
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From: Levittown/DelcoPA
Car: 1991 RS
Engine: L69?
Transmission: 700r4
Re: swapping in an older engine. hit a snag.

Originally Posted by Tinbender
by the way; nice save!!!
Thanks! I'll put some pics up when i sort this nightmare out lol. I've been around these cars quite a few times but never owned one. I got it for under 1000 bucks and the body has almost no rust/dents, and after looking up some of my RPO's I couldn't bear to get rid of it. The interior has seen better days but a few trips to the junk yard should spruce it up until i can afford some quality plastic.
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Old Oct 24, 2012 | 06:38 PM
  #5  
RavageTheRoad's Avatar
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Joined: Oct 2012
Posts: 186
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From: Levittown/DelcoPA
Car: 1991 RS
Engine: L69?
Transmission: 700r4
Re: swapping in an older engine. hit a snag.

Little update. Got the engine almost done. Had to run some tranny fluid in the oil to take care of a lifter problem, but she runs damn strong. Having a little problem with it not wanting to idle in gear though, still trying to figure that out. But so far, so good!
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