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.

Need new engine. Stick with 305 or go to 350. Want more horse power.

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Old Jun 29, 2012 | 12:01 AM
  #1  
Muggs89's Avatar
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From: Yorkville, IL
Car: 1988 Trans Am
Engine: 305 TBI
Need new engine. Stick with 305 or go to 350. Want more horse power.

Im going to need a new engine and the guy is willing to give me a really good deal with the swap. But as long im going to be getting a new engine i dont want the same low horse powered 305 pushing only like 170 hp. Also should i go tpi or tbi. I have a tbi right now so would i need different parts to make it work. I really would want atleast 230 horsepower to make a noTicable difference and even more would be great. What should i do so its not too expensive but gives out more than stock power and not to expensive. Thanks
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Old Jun 29, 2012 | 01:46 AM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

Originally Posted by Muggs89
as long im going to be getting a new engine i dont want the same low horse powered 305 pushing only like 170 hp.
can't beat cubic inches

Originally Posted by Muggs89
What should i do so its not too expensive..... and not to expensive.
Define " not expensive"?
What is your budget?
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Old Jun 29, 2012 | 02:03 AM
  #3  
Phenom-1's Avatar
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From: Los Angeles, California
Car: 1992 Chevrolet Camaro Z28
Engine: 5.7 TPI
Transmission: 700R4 Overdrive Automatic
Axle/Gears: 3.23:1 Positraction
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

Well you could make 230hp with a 305 running with the TPI system but you would need to have a 5sp mated to the engine because the automatic would Kill hp down to 200ish, so if you could get a 350 engine that would be Great ( if you have an automatic ) because then you can make enough hp. I currently don't know whether you have an A4 or M5. So here's how it goes. For $2500 you could have a 350 TPI setup making 250hp
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Old Jun 29, 2012 | 04:39 AM
  #4  
blue birdy 87's Avatar
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From: Washington state
Car: White 84 z28
Engine: Chevy 350
Transmission: T5
Axle/Gears: Posi and?
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

If your on a budget and want power, just keep your current injection system, and go 350. Its more hp then the 305 now, and if you ever want alot of power you'l be doing the swap eventually.
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Old Jun 29, 2012 | 11:07 AM
  #5  
Muggs89's Avatar
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From: Yorkville, IL
Car: 1988 Trans Am
Engine: 305 TBI
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

350tpi or 350tbi?

i really wouldnt want to spend over $1500 on everything but labor.

what are the parts needed to do the swap?
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Old Jun 29, 2012 | 11:31 AM
  #6  
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From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

tbi heads are ****. depending on what injection route you go you have to switch computers and maybe wiring. theres tons of threads on how to swap an engine just do a search.

id say search around get yourself a nicely built 350 with no heads or mani. get some vortec heads a vortec manifold and run tbi or tpi but the mani has to be compatible with either. or do it the easy way and go carbd
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Old Jun 29, 2012 | 02:37 PM
  #7  
Muggs89's Avatar
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From: Yorkville, IL
Car: 1988 Trans Am
Engine: 305 TBI
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

89 350 tpi corvette engine?
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Old Jun 29, 2012 | 03:33 PM
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tylercamaro's Avatar
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From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Need new engine. Stick with 305 or go to 350. Want more horse power.

switch computers and harness. you need the tpi setup and a good set of heads and your basically there. theres not much difference between a vette engine and the camaro tpi engine. buy yourself a used 350 block with good bores and mains and all that with the rotating aseembly buy a rebuild kit. heads, a nice cam like the lt1 is one of my faves for economy ish driving. and put the thing together. if you really wanted a good swap pick up a cheap lt1 engine and put that in and wire it all up
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