Need opinions on 305 TBI -> 350 [crate] TBI price quote
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Joined: Apr 2007
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Need opinions on 305 TBI -> 350 [crate] TBI price quote
I found a local shop that uses GM crate engines in their engine swaps/rebuilds and I need your opinion(s) on whether the price is where it should be.
Car specs:
1990 Camaro RS 305 TBI automatic
Quoted engine and pricing:
350 [crate] w/TBI $1295 + sales tax ($106.84) + $850 in labor = $2251.84
Now, I only plan on running TBI for as long as I can to save up the money to drop in an EFI system with a couple of turbos or supercharger(s) down the road. So, I mainly need opinions as to the quote pricing whether its a good deal or not. I DO NOT have the space currently to do the swap myself due to this beauty taking all the garage space.
So as Howie would say, "Deal or no deal?". If you know of a better shop here locally in the Dallas/Ft. Worth area please feel free to give me an address + phone number. Must be within 30 miles of zipcode 75067. Thanks in advance for the opinions.
*edit*
Please remember this is going to be my daily driver and not some high horsepower street machine--at least not yet. I would just like opinions on the pricing and not whether I should get a TBI or not.
Car specs:
1990 Camaro RS 305 TBI automatic
Quoted engine and pricing:
350 [crate] w/TBI $1295 + sales tax ($106.84) + $850 in labor = $2251.84
Now, I only plan on running TBI for as long as I can to save up the money to drop in an EFI system with a couple of turbos or supercharger(s) down the road. So, I mainly need opinions as to the quote pricing whether its a good deal or not. I DO NOT have the space currently to do the swap myself due to this beauty taking all the garage space.

So as Howie would say, "Deal or no deal?". If you know of a better shop here locally in the Dallas/Ft. Worth area please feel free to give me an address + phone number. Must be within 30 miles of zipcode 75067. Thanks in advance for the opinions.
*edit*
Please remember this is going to be my daily driver and not some high horsepower street machine--at least not yet. I would just like opinions on the pricing and not whether I should get a TBI or not.
Last edited by VonKaiser; Feb 18, 2008 at 05:58 PM.
Thread Starter
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Joined: Apr 2007
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
quote
If just a daily driver, and not turbo or supercharged, then the 350 TBI engine will be fine.
I would equate "EFI system with a couple of turbos or supercharger(s)" with "high horsepower machine". But, if this 350 isn't intended for such a future upgrade, go for it.
(BTW, there's nothing about "that beauty" taking all the garage space that a tow truck wouldn't solve. . .
)
I would equate "EFI system with a couple of turbos or supercharger(s)" with "high horsepower machine". But, if this 350 isn't intended for such a future upgrade, go for it.
(BTW, there's nothing about "that beauty" taking all the garage space that a tow truck wouldn't solve. . .
) Thread Starter
Member
Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: quote
I would equate "EFI system with a couple of turbos or supercharger(s)" with "high horsepower machine". But, if this 350 isn't intended for such a future upgrade, go for it.
(BTW, there's nothing about "that beauty" taking all the garage space that a tow truck wouldn't solve. . .
)
)
I'll take that as sarcasm. The MR2 is my brother's and we are going to stuff a Camry V6 in it and make it quite a powerful go cart. It just might be faster than my Camaro will end up being.
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
Thread Starter
Member
Joined: Apr 2007
Posts: 233
Likes: 0
From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
I'm only kidding you. Trending Topics
Junior Member

Joined: Feb 2008
Posts: 4
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From: Ft. Worth
Car: 1990 RS Convertible
Engine: 305 TBI
Transmission: T-5
Axle/Gears: 3.42
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Did you have any luck with this, if so, is there a shop that you would recommend?
Thanks
Dave
----------
Thanks
Dave
----------
Last edited by dsmith124; Feb 28, 2008 at 10:33 AM. Reason: Automerged Doublepost
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From: NW Indiana
Car: 1991 Camaro
Engine: Morris 434 Single Turbo
Transmission: TH350
Axle/Gears: 9" Ford w/4.11's
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
I say just get or rebuild the 305. Your fuel mileage will drop drastically with the 350 upgrade, not to mention the fact that you now have to go find a 350TBI unit or injectors, the PROM and such, not to mention all the sensors to go along with it.
Just rebuild the 305 and pocket the extra cash for future upgrades like rims, suspension, and chassis mods.
Just rebuild the 305 and pocket the extra cash for future upgrades like rims, suspension, and chassis mods.
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
Define significant. Like .5 mpg or less? Is that significant?
It is in the C.A.F.E. world, but not to someone talking about dual turbos.
Rebuilding a 305 has got to be the worst use of hobby dollars out there.
It is in the C.A.F.E. world, but not to someone talking about dual turbos.
Rebuilding a 305 has got to be the worst use of hobby dollars out there.
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Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Anybody had any good experiences with craigslist? I do not want to go the ebay route for several reasons. I'd like to get an LT1 but I doubt I'd be able to find a running complete engine w/4L60E for $1,200 or less. I need a good alternative that won't cost me more than $1,000-1,200 for the engine/transmission and $1,000 in labor for someone to put it in. In other words I do not want to spend more than $2,200 on the drivetrain total. At this point even if I drop in a V6 I don't care, as I can just drop a turbo or two on it for little money in the future--or if its a 3800 Series I can put the Eaton supercharger on it.
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
you wouls spend way more going v6 than youwould 350. Look around on craigslist. Find yourself a 350 longblock. Do some searching, they are on there and cheap. Take your intake and tb and put on it. Go to the pul lyour own place and get a 350 chip and injectors for cheap, and go for it. use your exhaust and your distributor everything. then mod it down the road.
Are there better ways, of course. Everyone would like to ditch everything non performance and replace it all at once. Its just not practical. This way, you can upgrade exhaust and whatnot as you get the money. Those are smaller expense compared to an engine.
Are there better ways, of course. Everyone would like to ditch everything non performance and replace it all at once. Its just not practical. This way, you can upgrade exhaust and whatnot as you get the money. Those are smaller expense compared to an engine.
Thread Starter
Member
Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
you wouls spend way more going v6 than youwould 350. Look around on craigslist. Find yourself a 350 longblock. Do some searching, they are on there and cheap. Take your intake and tb and put on it. Go to the pul lyour own place and get a 350 chip and injectors for cheap, and go for it. use your exhaust and your distributor everything. then mod it down the road.
You did mention craigslist, I take it that is a good place to get engines? I hate ebay for mechanical parts.
Thread Starter
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Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Good news, sort of. I found a local shop that will rebuild my 305 and convert it to a carb setup for $2,200 total. This includes new accessories and tuneup items. Carb > TBI IMO. The shop in question specializes in restoration of classics. They have several 70's Trans-Ams and a couple of C3 Corvette convertables sitting in their garage at the moment.
I'm looking forward to this I think, it will give me the oppertunity to cheaply make power since carb power is abundant. I just can't do turbos. Blowers on the other hand... 
So, how much power should I expect from a run-of-the-mill stock 305 w/carb setup? And secondly, how much would it cost me to get to my target of 300-320bhp and 320-350lb.ft. torque? I'm guessing since the smog pump and emissions equipment will be removed (I'll keep the catalytic converter) my power should range between 180bhp to 200bhp...or more? Any ideas?
Or should I just find the numbers for a stock 3rd gen with a carb 305 and expect those power outputs?
I'm looking forward to this I think, it will give me the oppertunity to cheaply make power since carb power is abundant. I just can't do turbos. Blowers on the other hand... 
So, how much power should I expect from a run-of-the-mill stock 305 w/carb setup? And secondly, how much would it cost me to get to my target of 300-320bhp and 320-350lb.ft. torque? I'm guessing since the smog pump and emissions equipment will be removed (I'll keep the catalytic converter) my power should range between 180bhp to 200bhp...or more? Any ideas?
Or should I just find the numbers for a stock 3rd gen with a carb 305 and expect those power outputs?
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
Ask them how much to rebuild and install a 350. Probably $2300.
Member
Joined: Mar 2007
Posts: 118
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From: Los Banos CA
Car: 91 Camaro RS
Engine: L03
Transmission: T5
Axle/Gears: stock
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Unless your heart is SET on the 305, Ditch that thing and step up to a 350. Your already shellin out the cash so dont gimp yourself! (I know I know there are guys on here with beastly 305s)Just my 2 cents...
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Joined: Jul 2007
Posts: 1,461
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Yeah, if your gonna do a full rebuild, like overbore, new pistons and bottom end, all that, you might as well drop the extra $50 on tired 350 block. There is no reason that you would do all the same exact work to a worn *** 305, when even less worn 350 blocks are abundant.
There is a stickey about doing the 305TBI to 350TBI swap. The stuff you need to change out isnt that bad- a few sensors, the injectors, ECM (now would be a good time to pay some extra for an EBL flash) and possibly fuel pump, depending on how beat it is.
Also for cheap, you could find some 350 manifolds and y-pipe with the single 3" cat, at a junkyard. That will allow you to use a 3" inlet catback exhaust, without the stock LO3 bottleneck y-pipe and manis. My buddy swapped manifolds and y-pipe to the 3" one years ago on an IROC he used to have - it was worth it to him.
There is a stickey about doing the 305TBI to 350TBI swap. The stuff you need to change out isnt that bad- a few sensors, the injectors, ECM (now would be a good time to pay some extra for an EBL flash) and possibly fuel pump, depending on how beat it is.
Also for cheap, you could find some 350 manifolds and y-pipe with the single 3" cat, at a junkyard. That will allow you to use a 3" inlet catback exhaust, without the stock LO3 bottleneck y-pipe and manis. My buddy swapped manifolds and y-pipe to the 3" one years ago on an IROC he used to have - it was worth it to him.
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Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
1. I'm SET on the 305.
2. I'm going carb instead of TBI.
3. I ONLY want 300hp at the crank.
4. This isn't my hotrod.
5. This is my daily driver.
6. This will never see a drag strip or redlight street race.
So, now that this is clear can I please get some advice on a 305 carb motor buildup? I need both the quickest way to get 300hp at the crank and the least expensive way to get 300hp at the crank. And or somthing inbetween.
*edit*
Can a mod please change my topic title to: 305 TBI --> 305 carb, need 300hp at the crank. Options?
Thanks in advance.
2. I'm going carb instead of TBI.
3. I ONLY want 300hp at the crank.
4. This isn't my hotrod.
5. This is my daily driver.
6. This will never see a drag strip or redlight street race.
So, now that this is clear can I please get some advice on a 305 carb motor buildup? I need both the quickest way to get 300hp at the crank and the least expensive way to get 300hp at the crank. And or somthing inbetween.

*edit*
Can a mod please change my topic title to: 305 TBI --> 305 carb, need 300hp at the crank. Options?
Thanks in advance.
Joined: Jul 2003
Posts: 10,532
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
^ Trust me, if this car isn't going to see the track, as well as no street racing whatsoever, then don't build for horsepower, build for torque (since you'll be keeping RPM to a minimum anyways), you'll enjoy the car a lot more around town. Valve events, air flow, and static/dynamic compression levels are the key....
Thread Starter
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Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
^ Trust me, if this car isn't going to see the track, as well as no street racing whatsoever, then don't build for horsepower, build for torque (since you'll be keeping RPM to a minimum anyways), you'll enjoy the car a lot more around town. Valve events, air flow, and static/dynamic compression levels are the key.... 

I'm not ashamed to admit it either--just go easy on me lol.The rest --> Torque is fun yes, but passing on the motorway needs higher end horsepower, and since I have an autobox it automatically downshifts and thus the RPMS rise out of my "powerband"--more horsepower should help with this issue shouldn't it? Pavement ripping torque (which my car has a tiny bit of
) is indeed fun in the city, but on the motorway I think I want a bit more mid/high RPM power. Thoughts? Joined: Jul 2003
Posts: 10,532
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Originally Posted by VonKaiser
The bold --> I have no idea what you just said--minus airflow.
I'm not ashamed to admit it either--just go easy on me lol....
I'm not ashamed to admit it either--just go easy on me lol....
Originally Posted by VonKaiser
The rest --> Torque is fun yes, but passing on the motorway needs higher end horsepower, and since I have an autobox it automatically downshifts and thus the RPMS rise out of my "powerband"--more horsepower should help with this issue shouldn't it? Pavement ripping torque (which my car has a tiny bit of
) is indeed fun in the city, but on the motorway I think I want a bit more mid/high RPM power. Thoughts?
) is indeed fun in the city, but on the motorway I think I want a bit more mid/high RPM power. Thoughts?
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
Man, I'm not trying to **** you off. quickest and easist way is with a 350. Why limit yourself? Its horrible. I guess you can lead a horse to water......
That aside, you need a new intake anyway. New distributor, all that jazz. I would recommend the possiblity of 305 vortecs, or a set of s/r torquers. A moderate cam, one of the comp cams xe series, and exhaust. Not a catback either, I mean all of it. From where it bolts to the heads to where it exits at the back. If this is an auto, you are gonna need a different converter. 300 really is a decent amount to get from a 305. In essence you are going to have to build the engine about 15% more radical to acheive the same HP level, and then you are going to lose even more bottom end tq because of the difference in cubes.
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Joined: Apr 2007
Posts: 233
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From: Little Elm, TX
Car: 13 Ford Focus SE / 90 Camaro RS
Engine: 122 I4 / 305 V8
Transmission: DCT / 700R4
Axle/Gears: 3.895 / 2.73
Re: Need opinions on 305 TBI -> 350 [crate] TBI price quote
I've been reading alot of 305 build up threads across alot of forums and it seems 300hp at the crank is actually fairly easy to obtain without sacrificing too much torque. Full exahust, cams, intake, and heads seem to be all I need to get even a TBI 305 to 300hp. The carb 305 I'm going to get built should be slightly better on power but less on the gas mileage--which isn't something I'm going to care about unless gas is $8.00 per gallon like in Europe. The 305 TBI build up here had a 298hp 306? torque build up--that would be just around exactly what I want. About $1,000-1,200 extra for those performance parts seems to get what I need. Hell I could still decide to do a TBI since I could theoretically get the power numbers I want.
My problem once I get these parts after the rebuild will be getting the right timing, airflow+fuel, and gearing correctly set. And I'm guessing I'll need a beefier rear end as well. I'm sure an IROC or 1991-1992 Z28 rear will suffice?
Thanks for the help.
My problem once I get these parts after the rebuild will be getting the right timing, airflow+fuel, and gearing correctly set. And I'm guessing I'll need a beefier rear end as well. I'm sure an IROC or 1991-1992 Z28 rear will suffice?
Thanks for the help.
Joined: Mar 2000
Posts: 43,187
Likes: 43
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
There's a tech article about beefing up the 10-bolt ("Ultimate 10-bolt", or something to that effect, I believe).
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