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LT1 swap with 305, question?

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Old Dec 18, 2007 | 01:24 PM
  #1  
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From: Tomball, Tx
Car: 89 Iroc-z Camaro
Engine: 305
LT1 swap with 305, question?

I have a 1989 Iroc-z with the 305 motor and manual tranny, will my existing transmission work and hook up with a LT1 engine??
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Old Dec 18, 2007 | 01:39 PM
  #2  
five7kid's Avatar
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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
"Hook up"? Yes.

"Work?" Only question there is, "how long".
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Old Dec 18, 2007 | 01:43 PM
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cml11109's Avatar
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From: Tomball, Tx
Car: 89 Iroc-z Camaro
Engine: 305
Re: LT1 swap with 305, question?

ok, cool. I understand that. Im in the process of taking out the old 305 and putting in a LT1, i think the biggest things that im worried about it the wireing and making sure this passes inspection, plus the A/C issue. Iv'e read multiple threads on it, just seams like many people still have issues trying to do it...
----------
Also, i got the LT1 for only $300, i am planning on rebuilding, what are my best options to get atleat 400hp out of it, but still be a reasonable car that I can drive a few times a week

Last edited by cml11109; Dec 18, 2007 at 01:46 PM. Reason: Automerged Doublepost
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Old Dec 18, 2007 | 01:55 PM
  #4  
AT4 T/A's Avatar
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From: Las Vegas
Car: 1989 IROC-Z
Engine: L98 350
Transmission: New 700r4 Done by 11/14/07!
Re: LT1 swap with 305, question?

lt4 conversion kit?
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Old Dec 18, 2007 | 02:31 PM
  #5  
cml11109's Avatar
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From: Tomball, Tx
Car: 89 Iroc-z Camaro
Engine: 305
Re: LT1 swap with 305, question?

I know this might be a stupid question...but if I have an LT1, and I buy the LT4 conversion kit. will I still have to completly buy a rebuild kit?? and would I have to get a Lt4 engine wiring harness??
Thanks
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Old Dec 18, 2007 | 02:40 PM
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From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: LT1 swap with 305, question?

Originally Posted by cml11109
I know this might be a stupid question...but if I have an LT1, and I buy the LT4 conversion kit. will I still have to completly buy a rebuild kit?? and would I have to get a Lt4 engine wiring harness?? Thanks
I really wouldn't waste your money on the LT4 conversion kit, as not only are the stock LT1 cylinder heads more than workable, a custom ground camshaft, tailored to your specifications, would work so much more better than the Hot-Cam. Just my....
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Old Dec 18, 2007 | 04:00 PM
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chevyowner02's Avatar
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From: Kingsport Tenn
Car: 1992 camaro
Engine: LT1
Transmission: 4L60E
Axle/Gears: 3:73
Re: LT1 swap with 305, question?

try www.eportworks.com more hp with his combos and for less money.
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