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How much to rebuild?

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Old Jan 26, 2004 | 06:17 PM
  #1  
Kevs87Z28's Avatar
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From: Dayton, Ohio Area
Car: Yellow/Black 1987 Z28
Engine: 355 Carb
Transmission: 700R4
How much to rebuild?

Hey guys i was wondering how much it would cost me to have someone rebuild my 305 and throw in an lt1 cam? i dont want a 350 so dont even think about making that comment.
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Old Jan 26, 2004 | 07:36 PM
  #2  
White91GTA's Avatar
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
just curious, why don't you want a 350? if you are looking for power, you have alot more work on your hands trying to build up a 305.
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Old Jan 27, 2004 | 05:56 AM
  #3  
ede's Avatar
ede
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From: Jackson County
depends on what you want to do. i'm at or around 3500 on my current engine and not quite done.
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Old Jan 27, 2004 | 02:22 PM
  #4  
TKOPerformance's Avatar
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From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Seriously, buy a crate engine. It'll cost less and you get a warranty. I'd just get a 350 instead of trying to rebuild your 305. I know you don't think you want to do that, but it isn't like this requires major changes to anything.

You could easily wind up with $1000 in machine work rebuilding an engine depending on what needs to be done.

If your goal is maximum performance with parts you select and an engine that you blueprint yourself then you should rebuild, but consider that this will cost you significantly more than just buying a crate motor, though you may have to accept a few sacrifices in terms of the parts used with a crate motor.
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Old Jan 29, 2004 | 08:09 AM
  #5  
ss85tadude's Avatar
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From: NorthEast GA
Car: 85 Trans Am
Engine: 305 TPI
Transmission: 700-R4
Re: How much to rebuild?

Originally posted by Kevs87Z28
i dont want a 350 so dont even think about making that comment.
LOL I dont think you should of said that.:lala:
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Old Feb 6, 2004 | 10:31 PM
  #6  
TransAmman87's Avatar
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From: Ohio
Car: 90 Trans Am
Engine: 305 TPI
Transmission: T-5
Hey Kevs87Z28, I was wondering the same thing about getting a rebuild. I have a very strong and dependable 305 TPI that has almost 100k on it. I haven't had any problem with it really, but the 100k on a 17 yr. old V-8 worries me a little. The reason I don't want a 350 is mainly because they really use the gas faster than a 305 (I have compared my dads 350 to my 305). Besides, my main goal is to keep my car as original as possible, but with some modest Hp. gains. But the question remains, how much would it really cost to do a engine rebuild for a 305?
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Old Feb 7, 2004 | 01:14 AM
  #7  
TKOPerformance's Avatar
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From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
100,000 miles on a TPI is nothing to be concerned about. Plenty of these motors have gone 200,000 or more. As long as the compression is good and there are no mechanical problems I'd just leave it alone until it dies.

Around town you get a bit better mileage with the 305, but on the highway the difference is barely noticable.

You can't just make a blanket statement like: "It will cost ____ to rebuild your engine". It depends on what parts you use and what machining you have done, as well as how much of the work you do yourself.
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Old Feb 7, 2004 | 08:43 AM
  #8  
speed88's Avatar
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From: St. John's, NL, Canada
Car: 1988 Trans Am GTA
Engine: 383
Transmission: 700R4
These motors are good for high milege when taken care of. My friends '88 GTA notchback with a 350 has 255,000 km's on it and it is still running strong. Last summer he was pulling consitent 14.8's on the 1/4 mile. And that is what these cars ran when new. How's that for well built!:hail:
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Old Feb 7, 2004 | 09:48 AM
  #9  
Chris89GTA's Avatar
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From: Nashville TN
Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
You don't have to get a crate engine to do a cheap 350. I guarentee the motor I am putting together will be cheaper than any crate motor and have 50% better performance.

As for the warrentee on the crate motor, they have those for a reason. If the motor is put together right in the first place there is no need for a warrentee.

You can do a good performance rebuild, or stroker kit on a 350 can be done relatively cheap. It just how you do it.
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Old Feb 7, 2004 | 09:54 AM
  #10  
rockind78's Avatar
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From: Michigan
My friend spent a little over $2000 to rebuild his carb'd 350, but there were a lot of new components in there, heads, intake, etc. If you are rebuilding a 305, keep in mind that some stuff for a 305 is going to cost MORE than that for a 350.

If I were you, I have noticed a fair number of people just yank their 305's as soon as they get them and sell them to fund their 350. I would just wait (if you can afford to) until one becomes available and then throw your LT1 cam in then.

Dustan
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Old Feb 7, 2004 | 08:32 PM
  #11  
TKOPerformance's Avatar
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Joined: Dec 2003
Posts: 2,391
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From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
This is what I mean about the question being loaded.

I could do a rebuild for probably $500, but I hardly think it would last anywhere near the same amount of time that a crate motor or a proper rebuild would.

You could easily spend $1,000 on machine work depending on what needs to be done. The more you spend up front the longer it will last. That much I can say with certainty.
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Old Feb 7, 2004 | 09:19 PM
  #12  
ThirdGenFire's Avatar
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Joined: Dec 2001
Posts: 620
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From: El Paso, Texas
Car: 2000 Trans Am and a 85 Iroc-Z
Engine: The Mighty LS1& 305 just beat meTPI
Transmission: 4L60E and 700R4
I got mine rebuilt for $450 at a local machine shop. My 305 TPI.
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