TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

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Old Apr 12, 2004 | 02:23 PM
  #1  
viper5470's Avatar
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From: Watertown, MA
Car: 89 Iroc Z
Engine: 305 TBI
Transmission: Auto
replace engine

how much do you guys think it would cost me to get a new 305 put in my camaro at a dealership, including labor
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Old Apr 12, 2004 | 03:01 PM
  #2  
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dont know depends on what needs replacing like wiring connector and the such. labor usually starts around $50-90 per hour. they will probably end up removing the transmission since its ez'r to remove the engine that way, especially if it goes on a lift. just get an (rent, borrow) engine hoist and change it yourself, save the $ for future mods. your just changing over to a newer engine not swaping out a V6 for a V8. my geuss would a few thousand, but not knowing the going hourly rate at that dealership it'd be way off. IIRC a new 5.0L is close to the same price as a 5.7L i gave $500 for a used TBI 5.0L and i know i can get a new 5.7 for about $1000-1500.
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Old Apr 12, 2004 | 05:21 PM
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
look at www.paceparts.com for the 92-93 350 caprice motor, it is actually cheaper than a 305, its $1547 brand new. It basically just a bigger version of the L03, not a performance engine but has more power than the L03 and alot more potential.
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Old Apr 12, 2004 | 05:30 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
It is going to cost you a fortune. I would use that money to buy a 350 and find someone that can do it for you. You will pay soooooo much to swap a motor in that is worth only a few hundred bucks.
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Old Apr 12, 2004 | 05:31 PM
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
The price I got for a 305-350 swap was $1000 for labor if I provide the mounts and sensors, which would run you about another $200 or so.

Since the labor is essentially the same, I would think it would be the same price. But if I were you, I would just go ahead an put in a new 350, since the prices aren't very different, and there's more potential in a 350 in the long run.

Here ya go:

http://www.goautocenter.com/350_tbi_1987-9.htm

or my personnel favorite:

http://www.goautocenter.com/300hp_tpi_1987-89.htm

(get this one w/ the TBI cam)

and for comparisons sake, here's the 305:

http://www.goautocenter.com/305_v-8.htm

(but it's for pre 87, so remember that)

I hope that helps.
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Old Apr 12, 2004 | 05:33 PM
  #6  
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From: San Jose, CA
Car: 2002 Z28
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Axle/Gears: 3.23
all those goautocenter engines are just L05 caprice engines with better camshafts and they charge over $400 more. It would be cheaper to just buy your own cam and install it.
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Old Apr 12, 2004 | 05:41 PM
  #7  
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by vjo90RS8
all those goautocenter engines are just L05 caprice engines with better camshafts and they charge over $400 more. It would be cheaper to just buy your own cam and install it.
That 300 hp TPI motor w/ the cam they put in it, puts out a dyno proven 319 HP and 399 lb/ft, and all with a 12,000/12 month warrenty. If he were to buy a standard LO5 long block and put a cam in himself, he would void any warrenty he had on it. It's about $230 for that cam (formerly called Crane Compucam 2030), so essentially he's getting the labor done and a warrenty for only $170 more. I think it's a good deal.
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Old Apr 12, 2004 | 05:59 PM
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From: San Jose, CA
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Axle/Gears: 3.23
well if he puts the L05 in his camaro the warranty will already be voided because its only valid if you match the engine with the VIN
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Old Apr 12, 2004 | 06:47 PM
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by vjo90RS8
well if he puts the L05 in his camaro the warranty will already be voided because its only valid if you match the engine with the VIN
details. . . details.

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Old Apr 12, 2004 | 08:10 PM
  #10  
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
yeah im planning on getting a new L05 within the next year or two and it sucks that it wont have a GM warrenty.
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Old Apr 12, 2004 | 08:33 PM
  #11  
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by vjo90RS8
yeah im planning on getting a new L05 within the next year or two and it sucks that it wont have a GM warrenty.
I still think the motor is worth the extra money since he's getting a warrenty w/ the cam installed. JMHO though.
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Old Apr 12, 2004 | 08:43 PM
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From: San Jose, CA
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Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
how long is the warrenty, cause on the page it says that a 2 year warrenty can be purchased. Is there another warrenty that is offered with the motor for free?
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Old Apr 12, 2004 | 09:47 PM
  #13  
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by vjo90RS8
how long is the warrenty, cause on the page it says that a 2 year warrenty can be purchased. Is there another warrenty that is offered with the motor for free?
12,000 mile / 12 month on parts as long as the installation did not cause the problem.

For $295, one can purchase a 24,000 / 24 month parts and labor warrenty through an outside company, but the install must be done by an ASE certified mechanic.
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Old Apr 12, 2004 | 09:51 PM
  #14  
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From: Watertown, MA
Car: 89 Iroc Z
Engine: 305 TBI
Transmission: Auto
would i need a new computer if i put a 350 in it
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Old Apr 12, 2004 | 09:58 PM
  #15  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by viper5470
would i need a new computer if i put a 350 in it
You won't need a new computer but you will need a new PROM (aka chip).
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Old Apr 12, 2004 | 10:02 PM
  #16  
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From: Hurlburt Field
Car: 84 Z28, '15 Colorado
Engine: L69
Transmission: A4
Axle/Gears: 3.73
Yep. You will need an ECM and knock sensor from a 350. Plus you will have some tuning done as well.
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Old Apr 12, 2004 | 10:35 PM
  #17  
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From: San Jose, CA
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Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
not a new ECM

but youll need a 350 knock sensor, ESC module, injectors, and PROM.
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Old Apr 12, 2004 | 11:28 PM
  #18  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by vjo90RS8
not a new ECM

but youll need a 350 knock sensor, ESC module, injectors, and PROM.
100% correct.
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Old Apr 22, 2004 | 02:02 PM
  #19  
beedo's Avatar
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Car: 1986 IROC CAMARO
Engine: LT1
Transmission: T-56
Axle/Gears: 3.73 posi
just priced a l05 at parts counter, being a gm tech my price is 1750.00 for the engine with a 3/50000 warr. labor is 18-19 hours through mitchell book. do it your self and save the 80.00 an hour
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Old Apr 22, 2004 | 05:03 PM
  #20  
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
you can get the caprice L05 from paceparts.com for only $1547 plus shipping
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Old Apr 22, 2004 | 08:46 PM
  #21  
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From: The nation's capital
Car: 91 RS
Engine: 350 TBI
Transmission: 700R4
Originally posted by vjo90RS8
you can get the caprice L05 from paceparts.com for only $1547 plus shipping
I think his price is probably walking out the door with it. From Pace, he would still have to pay shipping, so I think it works out to about the same.
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Old Apr 22, 2004 | 10:21 PM
  #22  
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From: chattanooga
Car: 91 RS
Engine: vortec 355 hsr
Transmission: wct5
Axle/Gears: bg3.27
thats funny mitchell online says about 6 to 7 hours to swap an engine
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Old Apr 22, 2004 | 11:26 PM
  #23  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by walterrao
thats funny mitchell online says about 6 to 7 hours to swap an engine
Who is talking about swap time? Maybe I am missing something. Anyways, you would have to be an all out pro who swaps engine for a living to do it that fast.
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Old Apr 23, 2004 | 04:29 AM
  #24  
vjo90RS8's Avatar
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
i think you could swap a carbed motor out of an old muscle car in that time. Just unbolt the motor mounts, bellhousing bolts, torque converter bolts, and lift that bad boy out. or take the tranny with it.
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Old Apr 23, 2004 | 08:13 AM
  #25  
beedo's Avatar
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Car: 1986 IROC CAMARO
Engine: LT1
Transmission: T-56
Axle/Gears: 3.73 posi
well i am glad we dont use online mitchell, the engine replacement is pretty straight forward if you can remember were everything goes. most time consuming part is transfering parts, i would suggest a set of manifold speaders when installing the exhaust. good luck, e-mail me if you have problems or questions
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Old Apr 23, 2004 | 08:48 AM
  #26  
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From: Buckhannon, WV
Car: 84' Monte
Engine: 350
Transmission: 700-r4
Axle/Gears: ferd 9" posi 3.50 gears
What in the sam hill are "manifold speaders"?
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Old Apr 23, 2004 | 08:57 AM
  #27  
beedo's Avatar
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Car: 1986 IROC CAMARO
Engine: LT1
Transmission: T-56
Axle/Gears: 3.73 posi
when you remaove the exhaust manifolds they shrink and will not align with the bolt holes on the heads, they spread the flanges and helt align them, may get luck and not have to use them, i never have been
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Old Apr 23, 2004 | 09:35 AM
  #28  
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From: Buckhannon, WV
Car: 84' Monte
Engine: 350
Transmission: 700-r4
Axle/Gears: ferd 9" posi 3.50 gears
Gotcha...learn somthin new every day. My manifolds spread into 2 pieces when I took them off. They had more crack in them than harlem. So I could see how you would have problems with them shrinking.
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Old Apr 23, 2004 | 11:43 AM
  #29  
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From: Murrayville, GA
Car: 1991 Pontiac Formula Firebird
Engine: 350 TBI
Transmission: 700R4
What in the sam hill are "manifold speaders"?


I was glad to see I wasn't the only one stumped by that one.
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