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.

advice for a novice

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Old Feb 17, 2003 | 12:47 AM
  #1  
irocbarry's Avatar
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From: Montana
Car: 85 IROC
Engine: L-69 305
Transmission: T-5 manual
advice for a novice

at school we have a thing called senior projects, well i want to do a motor swap

so heres the question, my car is my daily driver and will be for a while, i want to make it a lot faster , i am planning on doing a simple motor build and swap
my maine problem is that i wont have enough $$$$$$$ to do a tranny swap to,


so what power ranges should i be looking for
what is the better way to do it (383 or 350) for the most ecenomical choice
what are good parts to use, and base line starting points

thanks any help will be great




barry
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Old Feb 19, 2003 | 05:33 PM
  #2  
irocbarry's Avatar
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20 Year Member
 
Joined: May 2002
Posts: 663
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From: Montana
Car: 85 IROC
Engine: L-69 305
Transmission: T-5 manual
should have added, what can i safely run for power on the t5

any help would be appreciated
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Old Feb 19, 2003 | 06:28 PM
  #3  
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
T5 - forget the 383 (or say adios to the T5).

Simple motor swap -> much faster - doesn't work that way.

You have a fairly decent start with the L69. A couple of things that would help you are headers and cam (and valve springs to match the cam). You'd be surprised how much difference those things will make.

Beyond that, porting the heads would yield very good benefits. If you have access to machine shop tools, 1.94" intake valves and screw-in rocker studs are a good idea with the above upgrades.

To support the above, upgrade the ignition module and coil.

You'll notice that basically all of the above need to be done even if you do an engine swap - could even say "especially if you do an engine swap" (porting the heads one possible exception). So, spend the dollars now for the foundation, worry about the engine swap when you can afford the transmission upgrade.
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Old Feb 19, 2003 | 06:35 PM
  #4  
irocbarry's Avatar
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20 Year Member
 
Joined: May 2002
Posts: 663
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From: Montana
Car: 85 IROC
Engine: L-69 305
Transmission: T-5 manual
five7kid- thanks for the idea, what can i expect out of the 305 if i build it up

and how much can the bottem end handle if i decide to do nitrous im a kid what do you expect

thanks for any input everyone
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